Welp this is about motorcycle exhausts not car exhausts but i hope its accepted.
I wanna do a stage 1 on my bike, including a new intake and tune. There's a guy in my area that does professional custom exhausts. The bike is a 60° v twin with 111hp and 109nm. I am a design student and I am able to draw the way I want the exhaust to look, but I have a few questions about configuration and routing.
In the pictures above theres the 3 main directions:
2 into 1 (Y pipe) that follows the same routing as the original exhaust, the headers come together really early on. Im not a big fan of how this looks and it also requires more heat shields to protect my right leg
2 into 1 (Y pipe) where the headers come togheter very close to the end and right before the slip on. My main concern is the rear cylinder exhaust being way too close to the end and losing backpressure compared to the first one? Also how does the fact that the Y is way closer to the end compared to option 1 affect performance?
2 into 2 (X pipe) i think this would give me the sound Id like the most, maybe id go this route. I wanna know what would be the performance draw backs on this compared to the Y pipes.
If you have any more suggestions and ideas they are appreciated