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Comments On May 20, 2013:Sound alot better than my White brothers and alittle better performance
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Comments On Mar 01, 2013:Awesome Exhaust was a dream to fit only took me 15 mins start to finish, now sounds more sharper and more of a snap to it, looks awesome, ordered on 26th of february and my door today the 1st of march in Queensland Australia really happy with product and the online store will deff shop here again! keep up the good work!!
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Comments On Feb 28, 2013:mounted rite up looks great actually added 1-2hp alot of torq diten loose any top end diten have to rejet running just fine only bad hing is its REALLY LOUD.
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Comments On Feb 20, 2013:Good fit, good finish, good sound and good performance (after rejet and airbox mod).
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Comments On Feb 19, 2013:Fit and finish is perfect as I would expect. Sounds great and the price is hard to beat.
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Comments On Dec 11, 2012:great sound and throttle response......highly recommend
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Comments On Sep 19, 2012:great exhaust i bought it to replace the old exhaust that someone had taken the baffeling out of but this one was easily installed and sounds very good
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Comments On Sep 17, 2012:Sounds amazing and adds a good bit of power.
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Comments On Sep 14, 2012:very easy to install bolts right up to my rmz 450 will buy again when the time comes
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Comments On Sep 11, 2012:awesome
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Comments On May 24, 2012:Just received this in the mail from Rocky Mountain. Excellent service from rm. was delivered on time. The install of the slip on was a breeze. Only took about 20 mins. I was shocked how much torque gain there was with just the slip on. well worth the money. I hope it last of the years of riding. Cant wait tell i get my powerbomb header. thumbs up for this pipe.
Additional Comments On Jul 28, 2012:Just received this in the mail from Rocky Mountain. Excellent service from rm. was delivered on time. The install of the slip on was a breeze. Only took about 20 mins. I was shocked how much torque gain there was with just the slip on. well worth the money. I hope it last over the years of riding. Cant wait tell I get my powerbomb header and dyno jet kit. Thumbs up for this pipe.
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Comments On Jun 25, 2012:I love this silencer. Actualy my quad is really loud and sounds great. I also purchased the FMF Power Bomb header and I can feel the power... One thing I did to help me beat the guys up the hills at the dunes that I didn't tell them is I purchase a new sprocket for the back. My stock is a 38 tooth and I went with a 40 had to get a longer chain too. When they are in 3rd im in 4th. You loose speed in the flats so I went back to my stock sprocket.
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Comments On Jun 02, 2012:ltz 400 opened the power band alot
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Comments On Apr 29, 2012:Put this pipe on my KLR 650. Sounds great! Real low and loud! I was also pleased to noticed a significant amount of power gained with this pipe. Great upgrade to the KLR650
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Comments On Apr 04, 2012:Purchased this exhaust for my XR400. First disappointment was the rear "bracket". Not a welded bracket, but a metal band. Guessing FMF does this to save costs. In reality, it makes for a lower quality, less stable exhaust.
Sound wasn't nearly as loud as the old Supertrapp it replaced. Even without the quiet core installed, it seemed well under the 96db limit. Installing the QC didn't noticeably lower the sound output.
Disappointment number two was the third ride, when the rear bracket snapped off. I didn't notice it for a few miles. When I finally did, I stopped and secured the muffler the best I could. At least the front bolt stayed attached. I rode slowly back for about 5 miles and didn't find the remnants of the bracket. Then rode back to my stopping point, still no bracket. I returned on my original route at a snail’s pace, and never found it.
Not happy with FMF, won't buy another one of their products. Buyer beware.
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Comments On Mar 25, 2012:All I've got to say is I love this muffler! Sounds great, looks great!
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Comments On Nov 27, 2011:bolted right up without problems. it was a must to re-jet +1 size afterwards . more power on both ends.
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Comments On Aug 23, 2011:awsome pipe. sounds great and a definate notice in power
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Comments On Jul 24, 2010:I cannot even explain the difference this made! If you buy this pipe, get the powerbomb headpipe also. Woke my quad up from the grave! Looks as good as it sounds as it performs!
Additional Comments On Aug 24, 2011:Had this pipe well over a year and it is still as amazing if not more. Sounds amazing but over the year it got noticeably louder but still not complaints from neighbors. Have done several 6 o'clocks, and its still holding up. Great quality!
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Comments On Aug 16, 2011:I put this pipe on my 07 Yamaha TTR230...sounds AWESOME!...along with air box adj., this is the only mod done to the bike, it really woke up and lets the bike breathe. Noticeable increase in power. Looks good too. Well worth the price!!
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Comments On Jun 04, 2011:OUTSTANDING power gain! 1st mod was this pipe... very noticable power!!! Did an airbox Mod... not as big a gain... jetted it according DirtBike magazine "TTR 230" performance mods... feels like a tame 500cc bike now!!!
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Comments On May 03, 2011:I bought this exhaust to lighten up the bike and maybe increase the power a tad. I am pleased with how it went on and it looks 10X better than the big ugly stock pipe.It has a great sound, louder than stock but not too loud. Also I bought jets to re-jet the bike but actually rode it for a day with stock jets and its ok, its not perfect but its rideable. I would buy it again especially at such a good price point.
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Comments On Apr 30, 2011:great fit very loud good power top to bottom was bummed that they couldnt inclued a $4 dollar jet
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Comments On Mar 30, 2011:sounds great easy install can ask for better performance now im jus waiting on the efibox and power bomb header they will be here tomoro and ill write another reiview but the power core 4 is a must hav on a 09 z400
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Comments On Mar 06, 2011:just installed this pipe on my kfx 450 along with the power bomb header and have no complaint sound good looks good fits good thats fmf also rocky mountain service and shipping is always great will buy again from rm
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Comments On Feb 13, 2011:After just a little more than a year the rivots are starting to fall out where the end pipe connects to the main baffle.
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Comments On Feb 10, 2011:I got this FMF Powercore slip-on for my 07 YFZ450 and had my carb jetted by Status Motorsports in Whittier California, and man this thing rips!! Sounds great and is a good choice of exhaust system.
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Comments On Feb 04, 2011:Got this slip on for my 07 drz400e took about 10-15 mins to fit the sound is awesome and you can definetley feel a power increase. No need for changing the jets but if you wanted you could up em. No regrets love my fmf
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Comments On Jan 22, 2011:Just bought this for my sons CanAm DS90X. It sounds great and seems to let the motor rev a little better.
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Comments On Dec 06, 2010:I was surprised at the increase in bottom end. The installation was very simple and took less then 10 minutes.
Additional Comments On Dec 06, 2010:2007 DVX 400
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Comments On Nov 24, 2010:so i bout this pipe for my 2005 rmz450 thinking it would not be much more power this pipe gave it so much more power has an amazing sound i give it a 5 outta 5 only took me 10 min. to install very eazy buy this pipe and if you ride desert or forest get this pipe!
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Comments On Oct 18, 2010:this thing is awesome almost scared me how much more bottom end i had was very pleased with the performance cant say enough about it!!!!!
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Comments On Oct 22, 2007:This is awesome!
Additional Comments On Oct 07, 2010:This is awesome!
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Comments On Sep 21, 2010:very loud pipe!!!!!!! i love this thing noticeable difference in power and its only a s/o for my 700xx
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Comments On Sep 16, 2010:This was a grrreat add on to my Suzuki DRZ 125L and gave me the sound and power of a mother grizzley bear, sweet!!!
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Comments On Sep 02, 2010:It sounds great but also I noticed a diff in power in all gears
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Comments On Feb 16, 2009:sick pipe love it rejet and put a K&N on an u will be whipping any stock bike
Additional Comments On Sep 01, 2010:it has been two years since i installed my FMF no major problems. The only thing is when repacking it the canster got a little tweaked. mabey i was a little hard on it? idk. but it is still the best pipe i have ever had. Still 5/5.
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Comments On Aug 28, 2010:The Can Am DS 450 is a fast quad... But it was still missing somthing. I put on the power core with the power bomb header and also installed the FMF Power progarmer. This package is what it was missing!! Great power and sound. Plus the power programmer makes it a really smooth power.
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Comments On Aug 18, 2010:Nice quality silencer, looks good, sounds great. I paired it w/ an FMF power bomb header.
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Comments On Aug 13, 2010:This product is pretty sweet. i gave more power and sounds sweet to. very easy to install. 08 raptor 350
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Comments On Mar 25, 2010:love the pipe for my 400ex. Itt fit like a dream. I was if'y about ordering from rocky's cause im from ontario, canada, but i just got it in the mail today, in only 4 days, quicker then i was told. Nicely wrapped and what i expected was in the box. I would definately order from rocky's again.
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Comments On Feb 16, 2010:Sounds great, easy to install and a noticeable gain in power!
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Comments On Feb 04, 2010:Bike runs sweet... love the pipe
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Comments On Feb 04, 2010:Bought this pipe for my dads 2003 TTR250, bolted up no problems at all. Fired it up and man was it loud!
If you have heard a motocrosser 250f, it sounds pretty similar to that sound wise.
The documentation says a rejet is not necessary for his bike, but im thinking it would run better if we did though.
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Comments On Dec 29, 2009:I just installed my brand new slip on that Rocky sent (ASWESOME SERVICE By the way) and it sounds like I have a harley!!! Compared to stock I didn't notice a lot more power but it sure sounds a lot better (I gave it a spin around the block and turned on a car alarm! hehe). Loud and all, I didn't feel the need for earplugs, just my helmet. Good Job FMF and Thanks RM for your great service and awesome website.
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Comments On Oct 02, 2009:I just ordered this silencer for my 94 XR600R, installation was a breeze and the power gain was awesome! one of the clamps go right over the FMF sticker on the silencer but other then that its pretty nice. i love the low sound it produces and is louder then stock. ill put FMF on any of my bikes!
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Comments On Sep 27, 2009:great sound alot of gain in the mid and hi.my 450ds feels and sounds like a whole new machine
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Comments On Aug 27, 2009:Not overly loud but gives a nice boost in torque. Pipe is definitely worth the investment
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Comments On Jul 20, 2009:i love this slip on. i gained some noticeable power on my 08 honda trx700xx. sound great and loud. def recommend this product. i plan on putting the powerbomb header and power commmander soon from fmf. for more info check out my youtube videos. search 08trx700xx.
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Comments On Jul 13, 2009:A must Have!!!
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Comments On May 23, 2009:bolt on power in 10 min, 08 Kawasaki KFX 450R
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Comments On May 17, 2009:I purchased one of these and installed on my Can-Am DS450X, 2008 model. I notice more "grunt", more pull, more torque. Lots of mid range, and the top end is wonderful. I also drilled 8 holes, 3/4 inch diameter, in the top of the airbox. Now the quad really hauls. It was fast before, now it's super fast.
This slip-on is top quality, very well made. The attention to detail is first class. I'm extremely picky about what I buy, as I've worked in machine shops, am an artist by education, and work in quality control and process improvement.
This product meets all of my expectations for excellence. It bolted on perfectly without a single hiccup.
Well done, FMF. Well done.
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Comments On Apr 28, 2009:This pipe works wonders for my poorly dealer prepped 07 yfz. It's loud, but the power increase i got with this pipe and a jet is insane. I just recently added a rev box from rocky mountain and its a whole new machine.
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Comments On Apr 25, 2009:The sound is amazing, the look is great, the fit and finish is awesome and the power over stock is unbelievable. Would consider nothing else but the power core4 for any of my future bikes or quads.
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Comments On Apr 24, 2009:This silencer wasn't specified for the XR650L, but it fits just as well. The adjustable sleeves allow you to use the standard mounting and the turn signal mounting; all you need are a slightly longer bolt for either hole. I read through lots of postings to see if it would work. Rocky and FMF didn't know, but one guy on the postings said he had done it with no problem. I mounted this along with the powerbomb header and wrapped that up in header wrap. There's definitely much more power than in the standard configuration. However, I had already done the Daves carb mods and pulled the baffle out of the stock muffler; that had it running much stronger. Then, I desmogged it; I had upped the jets to 55/158 and then tried 58/160 and even 58/162 with the Powercore 4. 55/160 works best for me at about 800' altitude on the CA Central Coast. Now it runs real smooth and is a bit loud; I have to wear earplugs. Overall, the XR is a different bike with a bit of excitement as compared to the lame stock setup. I tried the quiet core (make sure you buy the one specified for the TI Powercore that comes with the SA; I think it's the 1 3/8" that comes with a four or five inch insert. It doesn't make a huge difference, just cuts down a slight bit on the bark. I recommend it overall; the look and quality are great. However, changing the packing seems like it'll require surgical cutting of the silicone and some time banging away with a mallet as there is nothing to hold onto on the cannister; the sleeves comes off and all you have is the cylindrical shape.
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Comments On Mar 03, 2009:great pipe will suggest getting k&n air filter and rejetting it gave my 500 predator alot more power
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Comments On Mar 01, 2009:I installed this on my stock DRZ400S and wow what a difference in power just from the pipe. Well worth the buy!
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Comments On Mar 07, 2009:This pipe gave great power gain over stock. It's light and has a very deep, throaty sound. It's not too loud but you will be noticed. This pipe, a k&n air filter, and a jet kit really woke up my raptor.
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Comments On Feb 14, 2009:this was a good investment for my raptor 350. its easy to install and give a decent power gain with an awesome sound. definitely worth the money
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Comments On Jan 18, 2009:WOW WHAT A DEAL. JUST PUT THIS PIPE ON MY YAM. 450 AND SHE WOKE UP LIKE I SPLASHED HER WITH COLD WATER. LOOKS AND SOUND GREAT POWER ALL OVER. THIS GETS 5 BRAPS! CANT WAIT TO ADD HEADER! AND INSTALL WAS EASIER THAN CHANGING THE PLUG.
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Comments On Sep 09, 2008:Great slip-on. It made a big difference from my stock, but the only issue I had was with the way that it was shipped. Not protected enough. Great price and quality of product though....
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Comments On Aug 22, 2008:If you love having that deep throaty sound, that lets people know you are there, then this is the exhaust for you. I bought this for my 07 YFZ 450 and what a difference. It gave it power throughout the power band and it sounds great. the sparky is installed and easy to remove. worth the money.
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Comments On Aug 10, 2008:This pipe sounds and works great!!! What a difference over stock. Along with a k&n air filter and a carb adjustment does it ever go!!! I recommend it to anyone who wants good power gains and great sound. The bike i have is an 2001 Bombardier DS650.
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Comments On Jul 24, 2008:very good system. sounds good and really easy to install. just 2 bolts and you are all done.
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Comments On Jul 22, 2008:i bought this for my 2007 400 ex i just got. at the same time the fmf jet kit. i installed it and what a difference with the jet than just having it stock.. if you get this i would suggest that you get the jet kit too.. It is louder then the stock exhaust but not as loud as i would like.. but pretty good buy.
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Comments On Jul 21, 2008:great sound..very light and adds more power over stock exhaust..great product at a reasonable price
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Comments On Jul 03, 2008:This is a must have pipe for a 400ex
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Comments On Apr 11, 2008:I PUT THIS EXHAUST ON MY HONDA XR 400 AND WHAT A BIG CHANGE IN POWER.I CHANGE THE MAIN JET TO A 162. PILOT JET TO A 62.YOU CAN REALLY FEEL THE BIKE NOW FROM LOW END TO TOP END. A++++ RATING.
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Comments On Apr 05, 2008:This was a great purchase. Awesome pipe, incredible sound. Easy to install.
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Comments On Mar 10, 2008:puts out alot better sound and has a deep mellow but loud tone....was easy to install...wish i knew how to tune the powercore
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Comments On Mar 12, 2008:its a great exhaust especially for the price... i have one on each of my 2 quads... one however did have the weld crack on the midpipe but fmf sent me a shipping label and i had a brand new one in a week! very reliable company...
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Comments On Feb 28, 2008:The pipe is a work of art. VERY well made. Installation is simple and very strong mounts are used. Fit was perfect on my 08' Raptor 350. Power increase with this pipe, DJ jet kit and Mod Quad intake was unreal. GET THIS PIPE!
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Comments On Feb 25, 2008:easy install, good tone- not too loud but throaty, with jets and intake it really woke up the 400
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Comments On Feb 15, 2008:This pipe installed easy and looked alot nicer than stock. Nice power gains along the whole rpms. Not the loudest pipe but really rips when I open up the 400ex. A must buy if your trying to speed up your 400ex.
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Comments On Jan 25, 2008:This silencer added power to my wheeler. It is great. It sounds really good and has increased performance. I will defintely buy one for my next wheeler also...
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Comments On Dec 16, 2007:easy to install and fit perfect, make a big difference in the atv. good product
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Comments On Dec 02, 2007:i got this pipe for my raptor and its just what it needed to livein it up and not be to loud and at a good price i will definatly buy fmfs again.
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Comments On Nov 19, 2007:This exhaust really helped the low end on my bike recommended for all dyno tested and increased around 2-3 hp also with rocky mountain Fast shipping thanks.
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Comments On Oct 26, 2007:I bought this for my buddies DRZ400E and wow what a difference. The power increase is obvious (with a main jet change)and I can actually hear him when were riding together. It's louder than stock, but not deafening like a full on competition only pipe. It even has a spark arrestor.
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Comments On Oct 23, 2007:This is one hard pipe to get a hold of and guess what, they had it in stock which no matter where I went that didn't happen. Shipped on time and easy to track.No problems to install and man what a difference
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Comments On Oct 23, 2007:The FMF Exhaust gave my bike more power and it sounds better to.
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Comments On Oct 22, 2007:We bought this muffler for my son's TRX 90 in order to add a little hp. Very easy to install and the difference was huge. He was climing hills that were not possible before. A great investment for those wanting a little more!!
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Comments On Oct 22, 2007:The slip on pipe I purchased from Rocky Mountain came on time and fit purfectly.I will consider to purchase many more items from them.
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Comments On Oct 18, 2007:Sounds GREAT has a nice bark.. Next pipe I buy will buy this one.. I know quite a few people that own this pipe and love it.
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