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FMF
Q4 Slip-On Exhaust
$296.99 
Lowest Price Guarantee
MSRP $296.99-359.99
Customer Rating:  


Item Availability status
Available - Usually leaves our warehouse in 2 business day(s).
All 2008 Kawasaki KFX450R Parts
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Product Description
  • Fourth generation of the original Q - high performance quiet technology
  • Pounds lighter than stock
  • Developed over years of championship off-road racing
  • Max sound output 96dB; most models below 94db
  • Constructed of aircraft grade aluminum and high strength stainless steel
  • Twin stage core design for lower sound output and extended life of packing material
  • Comes standard with spark arrestor


    • Click Here for Additional Exhaust Information
Customer Reviews
Average Rating -  Based on 4 Review(s)
Fit   4.8
Features   4.8

Finish   4.5
Cost Benefit   5.0

Durability   4.8
Overall   4.8
Latest Reviews
Fit   4.0
Finish   3.0
Durability   4.0
Features   4.0
Cost Benefit   5.0
Overall   4.0
Michael R. Snover Merrillville,  IN FMF - Q4 Slip-On Exhaust On 2008 Yamaha WR250X Super easy to install, instructions were straight forward. Sound is somewhat louder than stock. (I LIKE IT!) Seat of the pants power is better. (Now can lift front wheel in 1st and 2nd with no problem)Spark plug is light brown, no need to remap the FI. Only problem I see is that there is a leak where the exhaust pipe and the Muffle shell met. Has some gas and condensate escaping.
Fit   5.0
Finish   5.0
Durability   5.0
Features   5.0
Cost Benefit   5.0
Overall   5.0
Aaron Oberlitner Kalispell,  MT Amazing Pipe!!!!! When I put this pipe on my new wr 250f in addition to the other performance upgrades that I have done with this bike this upgrade is the real winner it is quiet yet sounds great and is pretty fast looking and feeling and also looks really trick.
Fit   5.0
Finish   5.0
Durability   5.0
Features   5.0
Cost Benefit   5.0
Overall   5.0
Bill Milligan Shasta Lake,  CA FMF - Q4 Slip-On Exhaust Q4 slip-on is quiet as advertised, noticable gain in power. This slip-on rocks.
Fit   5.0
Finish   5.0
Durability   5.0
Features   5.0
Cost Benefit   5.0
Overall   5.0
Paul burbank,  IL Q4=WOW After doing most other performance upgrades on my WR450, this was the real winner. Instant power increase without much more noise, then uncorked stock. I am very happy with the choice.
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