So for a while Ive been thinking about changing the exhaust on my Fit. It seems like everything is axle back, the only cat back I can find was a Yonaka, and even that seems to be sold out Also, no one has said that adding an exhaust to these cars has any power increase. I would assume axle back would add no power, but the cat back should?

 

Aftermarket exhaust on the Fit (and most other modern cars) is only for looks and sound. Power gains are either minimal or none.

 

With a catback you MIGHT gain like 3 whp. It isn’t worth it.