| Are you having troubles at the track or at a hare | | | | output from the exhaust is amazing. I have ridden |
| scramble with your bike being too loud to pass the | | | | with other exhausts that are meant for straight |
| sound testing? If you do then I have the exhaust for | | | | motocross racing without the spark arrestor and |
| you. The FMF Q4 Exhaust is a very reliable pipe for | | | | they still do not compare to how the Q4 works for |
| getting the db down to a 94 or even lower! I put | | | | me. It makes the exhaust come out in a straighter |
| this exhaust on my '07 yz250f and it does what it's | | | | line, which allows it to flow smoother. This also allows |
| suppose to. It gets my bike down to 89 decibels and | | | | the bike to run better and makes the bike easier to |
| has more power than my stock exhaust. | | | | ride faster. |
| The FMF Q4 also comes with a USFS-approved spark | | | | Overall it is an extraordinary exhaust between the |
| arrestor for woods racing which is required for all | | | | power output and low decibel ratings for racing. The |
| AMA sanctioned hare scrambles and enduros. If you | | | | FMF Q4 exhaust is on the pricey side if you get the |
| trail ride then you'll want this because all state trails | | | | lightweight Titanium version like I did, but in the long |
| require spark arrestor by law as well. The AMA is | | | | run it's worth it because you won't be failing any |
| changing some rules next year to keep the sound | | | | sound tests. It will also help smooth out the power, |
| down, and the decibel rating for Motocross is now | | | | allowing you to ride faster without working as hard. |
| going from 96 to 94 for the 2011 season and so on. | | | | P.S. |
| Most pipes do not get down that low. The power | | | | |