FMF Titanium Power Core/Power Core 4/Q4 Quiet Core Spark Arrestor Insert
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FMF Titanium Power Core/Power Core 4/Q4 Quiet Core Spark Arrestor Insert 1 3/8"

Part# 1133870001

Our price: $34.99

MSRP: $39.99 - You save $5.00 (13% off)

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  • Quiet core spark arrestor insert for Titanium Powercore/Power Core 4/Q 4 silencers.
  • Lowers sound to 94-96 decibels.
  • USFS approved.

FMF Titanium Power Core/Power Core 4/Q4 Quiet Core Spark Arrestor Insert Reviews

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0 of 0 people found this review helpful.

not a miracle

Comments On Feb 22, 2014:Takes a little bark out of my powercore 4. I have no doubt the motor runs a little hotter. wanted the Q4 but trying to save a few bucks.

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0 of 0 people found this review helpful.

Works

Comments On Feb 10, 2014:Bought this item so i could participate in desert races on public lands. Slides in well, quiets sound significantly, works as advertised. Quality product. I also recomend repacking your pipe if you are serious about reducing sound.

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0 of 0 people found this review helpful.

Easy fit and made a big difference to pipe sound

Comments On Dec 23, 2013:The Q4 insert fitted into my PowerCore4 pipe easily and made a big difference to the noise from the pipe - quieter but still sounds great.

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0 of 0 people found this review helpful.

Quieter?

Comments On Oct 15, 2013:No noticeable impact to power. Riding buddy says it is a tiny bit quieter, but I can't tell any difference.

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0 of 0 people found this review helpful.

Great Power, but loud

Comments On Sep 05, 2013:I put this on my 2012 WR450F and it made a HUGE difference in the power! the only downside is the noise. It's so loud that it makes my ears ring so I got the quiet insert for it and its better now.

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0 of 0 people found this review helpful.

FMF-good as always .

Comments On Jun 13, 2012:Bought it for my 2011 KTM 350 SXF. Shorter and lighter, gives a decent power boost. I tried it with the spark arrester screen in and out of it. I actually liked the easier spread of power with the screen left in for my novice ability. Loud with the screen out also. Then again KTM stock silencers are known for being quiet. My buddy got one for his '06 Hon. 450 CRF-R and didn't seem to be any louder with the screen out than his stock system.

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0 of 0 people found this review helpful.

gets dbs down

Comments On Mar 10, 2012:Helps pass 96db requirement

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1 of 1 people found this review helpful.

Does its job, but has some negatives

Comments On Jan 14, 2011:I installed the FMF Powercore 4 Ti with the SS Powerbomb header. Bought this to use when not racing. I rejetted for the new exhaust and when I installed the insert the engine ran hotter (had a temp strip in the engine) as did the muffler (verified with infared temp gun), both by about 25-40 degrees. Changed jetting back to stock, same results. Now it just sits on the shelf.

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2 of 2 people found this review helpful.

Forget me not...

Comments On Dec 29, 2007:Works great to reduce the db's. The design is prone to plugging up with muffler packing. Be sure to take it off and clean it regularly, especially if you have a new pipe.

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3 of 3 people found this review helpful.

No power loss

Comments On Oct 22, 2007:Easily installed, without any loss of power. Made my bike noticeably quieter, which is important if we are to keep our riding areas open.

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