Fatty vs. SST

[Spencer99]

hey guys,
what would you recommend for my 03 CR85? An FMF fatty pipe or SST pipe? Im a trail rider but like to ride fast!
Thanks

 

[briank1986]

I thought long and hard before ordering my Fatty pipe for my 01 CR250. Like kawicam250 said, its all about preference. I like bottom end on my bike, so I went with the Fatty.
If you ride the woods a lot the Fatty might be your better choice....

There all good pipes, you just have to figure out where you want the power and get the pipe that puts it where you want it.

 

[Spencer99]

this is what FMF jas to say about their pipes...

Fatty: Offers broad and substantial power enhancements throughout the performance range. Bottom power and meatier mid-range with an impressive top-end gain maxing out at a 10% horsepower gain.

SST: Up to a 15% horsepower gain can be achieved. It gives big gains down low, a quicker and harder hitting mid-range with the top-end that revs hard and long.

It seems like they both increase bottom end, but the SST gains 5% more horsepower.
I still dont know which one to get for myself.

 

[Chili]

We ran an SST on my sons RM125 and were happy with the gains, 15% is a pipe dream however, pun intended. If you go with the SST keep an eye out for detonation as we experienced some with ours and it's a common issue with the SST setup.

 

[FMF Rider]

Run the SST. It has low, mid, and top end gains but the Fatty focuses more on the low to mid range power.

 

[Patman]

Run the SST. It has low, mid, and top end gains but the Fatty focuses more on the low to mid range power.

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.

Our Fatty Gold Series pipe broadens the powerband and provides a healthy power increase everywhere. Improved throttle response, a linear powerband and enhanced over-rev all add up to a pipe that everyone will benefit from. The Fatty pipe is our most popular pipe for that same reason. If you’re riding trails, tracks or in the open desert, this pipe has what you’re looking for.

:think: Maybe you should call up Don Elmer and set him straight? :laugh:

15% gain? On what specific engine? I think as a general statement I'll call BS on that one as well.

Since my son rides a '03 CR85R as well and in similar uses I'll suggest the Fatty.

 

[FMF Rider]

15% gain on a cr80 engine (96'-02'). Look it up on www.mxsouth.com. Sorry for my mistake about the Fatty, I was thinking of the Gnarly.