2024 Ninja 650 Exhaust Pipe Size. Austin racing makes one where you cut the stock exhaust where the headers are welded to the cat and slide it on with a clamp, basically straight piping it. The razor tip full exhaust for the ninja 650 is one of the best ways to open up peak power that's hindered by the factory exhaust and make some more noise at the same time.

Stage 1 q5 installed (103 db @ 5,000 rpm). The two borthers s1r race exhaust turns the ninja 650 into a monster!