There's no reason a PC can't help the fueling of a bike with a stock exhaust just as much as one with an aftermarket exhaust. Basically a PC allows you to fuel optimally without respect to emission tests, typically a little richer in the lower mid-range where fueling is very lean to pass the tests. If properly setup (a big if), this will improve mid-range power and throttle response, no matter what the exhaust.spasm said:not being funny but why would u put a power commander on with the stock exhaust???? throw another £500 at her and get a full system otherwise ur wasting ur time
And BTW, I'm not pitching PC's as a necessary modification or even a desirable one for most riders. There are always tradeoffs.
- Mark