Originally Posted by
Nitro-Racer*
well by ruel i have to use 16% and i use the gas cooler too. em as for the exaust i am using the 2630 which is not good in saving fuel. the one that saves fuel is the 2611 one. hope this helps
Well, I'm in need of a new pipe anyway so maybe I'll try that 2611. From what I can tell, RB and Sirio both make a 2611 right? And you think this 2611 has better mileage than the 2601, 2602, 2604, etc?