According to Supertrapps web page,, JUST installing a pair of FatShots,,You will get a 15%HP & 12%TQ bump in power ,, Can this be true if so ,,What if you install a high flow A/C,,, then what???

also what's the stock HP & TQ ?

 

You might do much better by having the bike dyno tuned by a competant tuner. I would avoid a H-D shop tuner.

 

Stock is about 66hp/80tq.
Typical gains I've seen are about 15%hp, 10% tq with a full stage 1 including a tuner such as a PC, SERT, etc.

 

Im curiouswhat "stock" makes
This site says a stock 96" makes 52hp/65tq at the rear wheels
http://www.bikernet.com/garage/PageV...sp?PageID=1989

 

I would really be surprised to see that. It's hard to believe just adding the pipes.

 

I think a complete stage one and mufflers would be needed for those gains.
That's been my experience,for what it's worth.

 

My info comes from an average of 6 actual dynos from several mags and a dyno on
my 07 before and after. If those numbers were accurate I don't think a stage 1
would yield 75hp/88tq.
The numbers you posted are closer to stock Evo numbers.

 

I am making 79 hp and 81 tq out of a stage 1 88ci on my 03 RK

 

I would bet there is a little more to it than a pair of slip ons.

 

This is why I went with Fuel Moto. This is from their site. Check them out.
Dyno Information
2009-2010 Twin Cam 96" Dyno information