Hi guys I have a apex i ws2 exhaust and installed it according to instructions and it rattles off the rear stock swaybar on my 91 si. Si what i did is i took the middle section with the resonator and the cat attached to it and i flipped it upside down. Everything lines up and bolts fine but now my cat is upside down does that matter?

could it change the exhaust note? Kinda sounds between the nice deep tone of before and a mac truck...

anyone ever had any issues for install on a 91 civic si ?

 

I wouldn't imagine a upside-dpen cat would make a diff. Maybe it does though. it's just a pipe w/ a matrix in it though...