On the FMF website....I see there is an FMF Gnarly Pipe for 03'-06' 250/300's. Part number #025056. Wondering if there is anyone out there using this pipe on an 05' EC300. The range in model years makes me wonder about the fitment as I believe there were changes made to the dimensions of the EC300 in the 03'-06' range.
FMF Gnarly
- Thread starter gasIdaho
- Start date
2 strokes 4 life
New member
Yes used to pull my arms off on the 300
Yeah even on my EC250 it oulls hard off the bottom and hits like crazy in the middle but is horrible on the top. I spend alot of time in the top end so its not a great pipe for me but I have to hand it to FMF because it is Gnarly strong.
Here's the FMF blurbs on the pipes...
Unfortunately, no SST for my 2005 DE250.
http://www.fmfracing.com/default_detail.aspx?m=motocross&cat=51
Unfortunately, no SST for my 2005 DE250.
http://www.fmfracing.com/default_detail.aspx?m=motocross&cat=51
I don't see anything specific on the FMF website mentioning an "SST Style" Gnarly either, but in this thread http://www.gasgasrider.org/forum/showthread.php?t=4476 Speedy comments on the "new" Gnarly for the '07+ bikes.
Not sure what PEB means by SST style Gnarly. PEB???
If you reference both threads I think the pipe Speedy talks about is this one http://www.fmfracing.com/default_de..._make=GAS GAS&app_model=250/300&app_year=2007
According to Skidad's info it should fit back to '03...
The new 07+ Gnarly is decidely different than the older Gnarly. I am not sur about Skidad's claim that it fits back to an 03. I did howver have an OEM 06 pipe on my 02 that fit with a little hogging out of the lower mount, I don't run the upper mount as it rubs on the tank. If the 06 fit my 02 I can't see why the 07 would not fit the 05. Just to be clear the old style Gnarly is all bottom and then signs off. The 07+ Gnarly is the same thick guage but spreads the power out very similar to a Doma or the Oem pipes.
Paul
Paul
SpeedyManiac
New member
The link above is the pipe I've talked about. It's awesome. A little more bottom end yet it still revs out very well. I'm happy with it.
I think it should fit on the older bikes, but I haven't verified it.
I think it should fit on the older bikes, but I haven't verified it.
GMP
Active member
'03 saw an 8mm lower motor in front, so all pipes '03 + should fit. Pre '03 fit with a little work as Paul stated. The pre '07 Fatty and Gnarly are the same exact pipe made out of different guage steel. '03s came with a Fatty in the US. From my experience all the pre '07 FMFs fit like crap anyway so its hard to say what really fits and what doesn't, depends on how far you can accept the mounts being stretched. I'm pretty happy with the OEM GG pipe on the 250, which is a lot like the new Gnarly, including the heavy guage steel.
I may be looking at an after market pipe for my '09 300R. Anyone had any experience with these bikes and after market pipes? I want something stronger than the OEM pipe that gives me a bit more snap off the bottom and more over-rev. Seems the SST pipe might be the go but i couldn't find what gauge steel it was made out of...
Also, the stock '09 pipes, are they nickel plated or just straight steel? I need to get mine welded as one of the spring mounts broke off and i also found a small crack where it appears that the gasgas logo has been welded into the pipe (looks to be a square patch welded in).
Cheers,
MM
Also, the stock '09 pipes, are they nickel plated or just straight steel? I need to get mine welded as one of the spring mounts broke off and i also found a small crack where it appears that the gasgas logo has been welded into the pipe (looks to be a square patch welded in).
Cheers,
MM
iancp5
New member
The Gnarly is bottom end pipe it does not provide "over rev". It is made of heavier gauge steel than standard. It will be hard to find a pipe that boosts both bottom and top despite whatever claims are being made. In my, albeit limited, experience you should go for over-rev with the 300 it has plenty of bottom end already. In fact I found a Gnarly too much on the 300 but I am riding slow and slippery enduro stuff much of the time. 4 - 5 hours of having your arms wrenched out every time you catch a root akwardly or spinning out trying to ease her out of a grassy flat turn fast as possible aint fun!
I found the Doma pipe good. Kept enough bottom end but smoothed the transition. Also had more over-rev than a Gnarly.
I found the Doma pipe good. Kept enough bottom end but smoothed the transition. Also had more over-rev than a Gnarly.
Skidad
New member
The new FMF Gnarly (listed as 07-09) is what you want and comes stock on the US bikes. It's a copy of a Doma or Messico pipe and works really well and has the thick guage metal the SST does not.
iancp5
New member
But ...from the FMF site:
"The SST pipe increases mid range pull and extends the over-rev considerably while sharpening the off idle throttle response. No other pipe on the market can offer these same type of gains or offer the same linear power delivery that the patented SST brings to the table. "
"The FMF Gnarly pipe focuses on increasing the lower RPM horsepower and torque to get you out of the toughest terrain. When looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe for you."
Doesn't this suggest the SST is more like the Doma / Messico?
iancp5
New member
How do you know if you're getting a new one? How is it marked to differentiate from old Gnarly?
I've just fitted a "new" Gnarly to my 200 and it hasn't increased the over-rev. I'd say it's marginally less than the original but not so much as to matter for my riding. It has eliminated the hit and provided a little more bottom end and smoother progression. The one I had fitted to my 300 made it very snappy at the bottom, more on-off, which I didn't like.
SpeedyManiac
New member
The new gnarly is P/N 025095. I'm definitely happy with it.
iancp5
New member
For which engine?
