Great power combination for any 2 stroke bike.
nice that FMF has jetting guidelines for this pipe as well. No re-jetting required from stock for this expansion chamber, although I have re-jetted from stock because I ride at higher altitudes
Initially I was against purchasing a gnarly due to issues with. The old one on my bike. However, I couldn't beat the price so I took a chance. The fit was second to none and fell right into place. It does exactly what it says, there's a noticeable increase in horsepower when I'm trying to. Tractor. Through the rough stuff. Still trying to pin down the sweet spot in the jetting but very impressed. well worth the asking price. I also found out that the reason for the previous problem pipe ..... the previous owner forced the wrong pipe on the bike, hence the problem with the jetting. .
No problem with the install.
I paired this with a 9 oz. flywheel weight on a YZ250.
It was noticeable by itself but with the flywheel weight it makes this bike so much like an old school 500 (with the weight of a bicycle) That this 56 year old hasbeen is railing corners again.
Sound is awesome, like an old school factory bike.
Motosport on the other hand, well...... They rock!
I was having a problem with their website and called admin and they helped fix a problem I was having on MY computer! How Cool is that!?
I have ordered a bunch from them and they never let me down.
Never mind that they send you a bunch of free goodies, (calendars, fridge magnets, etc.).
Your local dealers hate when you buy online but they just need to step up their game, like maybe stock a CLUTCH COVER GASKET for a change!
I'm sold on these guys!
i order this product on 30/11 and arrived to me today ,after 11 days.fast shipping.and the price was very good i can say the cheapest.
great bottom end and mid pull, works well everywhere from track to tight trail highly recommended.
FMF gnarly pipe is the best pipe for any bike!
I bought the fmf gnarly and powercore 2 and love it! The power increase it gave me on my bottom end is insane compared to my stock pipe and silencer for my 1997 kx250. The gnarly is built very strong.. Had 4th pinned through some whoops and went off the side and hit a tree. The dent in the pipe is very minimal considering my pipe took almost all the impact, and still no power loss! I will and have recomend this product to anyone looking for power and a new pipe that looks badass!
I bought the FMF GNARLY PIPE & TURBINECORE 2 SPARK ARRESTOR SILENCER COMBO & saved myself a couple of bucks. I was going to buy both parts anyway so it was an added bonus that I could buy it as a combo & save some cash.
works great, sounds great & for a nice price. I love FMF
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Here is a link to the OEM page for the Exhaust on your 2006 Yamaha YZ250:
[ http://www.motosport.com/dirtbike/JD-Jetting-Jet-Kit ]