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HMF Racing Quiet Core Insert
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- The HMF Quiet Core is an insert made of 1010 Steel and installs on most HMF exhausts in seconds.
- It's designed for sound sensitive riding areas and decreases the sound level approximately 3-6dB.
HMF Racing Quiet Core Insert Reviews
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0 of 0 people found this review helpful.
Cool Product. Great Price.
TABITHA in FL
Comments On Mar 05, 2013:Cool Product. Great Price.
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0 of 0 people found this review helpful.
It lowers the db, but it lowers performance too.
JASON in KY
Comments On Dec 28, 2012:It is very easy to install. For my KFX450R, take the end cap off and there is a recessed area that it fits right into. The flange was slightly thinner than the recessed area, so it rattled a little, but not bad. The db's are difinitely reduced by a very noticeable amount. Performance was not reduced at lower rpms, but the reduced diameter of the quiet core pipe definitley robs some mid and upper rpm power. Usually the atv would easily wheelie while riding in the woods/trails in 3rd adn 4th gears with just little rises in the trail. This was not happening with the quiet core installed. Still if you are going somewhere that requires reduced db's then this will get your atv qualified.
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Quiet and Loud
John in MS
Comments On Nov 30, 2012:Really quiets the noise down at low rpm to a tolerable level and still has a good note when you get on it. Works with the factory spark arrestor too, keeps the rangers happy. It also helped my backfiring when cold, didn't need to add a FI optimizer.
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