Yoshimura RS-4 Stainless/Aluminum Slip-On

Customer Reviews for Yoshimura RS-4 Stainless/Aluminum Slip-On

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Customer Reviews

Yoshimura RS-4 Stainless/Aluminum Slip-On Reviews

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0 of 0 people found this review helpful.

Looks great and sounds even better!!!

Robert in TN – Machine this part was bought for: 2009 HONDA CRF450R

Comments On Apr 07, 2014:This pipe is amazing for lack of a better word and RM has the best price period. This pipe looks great, sounds great, and even performs great. The finish is absolutely beautiful and the carbon fiber adds a nice touch. The 2009 crf450r suffers from lack of top end and this pipe definitely helps. I'll dare say its the best mod for the money on this bike!

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1 of 1 people found this review helpful.

Instant power!

Dayton in NV – Machine this part was bought for: 2012 YAMAHA YZ250F

Comments On Dec 30, 2013:Loved this exhaust! Gave that yoshimura sound and the power was very nice!

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1 of 1 people found this review helpful.

sweet!

shane in UT

Comments On Apr 11, 2013:noticeable power increase throughout the Power Range. looks and sounds killer as well. Fits nice and snug, Quick Install.

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1 of 1 people found this review helpful.

Looks awesome

Clinton in CO

Comments On Mar 30, 2013:Great looks sounds good without being too loud and also has a spark arrestor.

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1 of 1 people found this review helpful.

Slip on muffler

James in TN – Machine this part was bought for: 2011 HONDA CRF450R

Comments On Nov 23, 2012:Ran it with the spark arrestor removed and the bike ran fine, very noticble power increase down low. I went ahead and got my ecu re mapped and even better

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1 of 1 people found this review helpful.

Great Product

Carl in TX

Comments On Nov 14, 2012:I really like this pipe. It is quiet and is very nice quality.

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1 of 1 people found this review helpful.

What was expected!!!!

THOMAS in NC

Comments On Sep 28, 2012:If you are looking more power with minimum spending and doing internal work, this is for you. Put this on my 2012 crf450r. Slip-on gives an immediate increase in power. No need to remap, works out of the box. Couple this with a Power-Flow filter from Twin Air and hold on. Increases pull into mid/upper 9,000 rpm range. When the new power wears off, a re-map and pulling the spark-arrestor will do the trick. Now need to stock up on some fresh tires to put the SCARY back in it.

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1 of 1 people found this review helpful.

Factory

DEAN in CA

Comments On May 02, 2012:How can you go wrong with a Yosh pipe or muffler.. Good price and points and 10 % off now and then.. No other business around is like Rocky Mt. ATV*MC. Nor their parts.

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1 of 1 people found this review helpful.

yosh slip on muffler

ERIC in CA

Comments On Oct 16, 2011:Yosh makes some good stuff! I'm really impressed. This muffler is really well made. The hanger bracket is SOLID and welded to the canister, not just cheaply riveted on like FMF does. Also, the connection to the head pipe is secured with a high quality clamp, not just glued on like FMF. The only surprise was the Yosh instructions suggest remapping the bike. The RM description didn't tell me this. This Yosh muffler is 9oz heavier than stock, but then it also has the spark arrestor insert.

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1 of 1 people found this review helpful.

Good looking, not so expensive S/A slip on

JONATHON in CA

Comments On Aug 16, 2011:Seems to be durable, but is heavier than the stock 09 CRF450R slip-on. Not much quieter than stock either, but seems to flow just as much air w/spark arrestor as the stock MX silencer. Arguably the best-looking slip-on for the bike.

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