no o2 sensors to deal with if straightpiping the secondary cats. it should be a little louder at idle but not excessive. other than that, chop away and slap those pipes on....
I wouldn't do both on this car, mainly because I hate how 6 bangers sound and I don't want to emphasize that. I talked to Vadim here on this board and he said straightpiping the secondaries is a better option because the resonator also keeps the pressure balanced.jangy said:Yup yup, I think you'll like it. i don't know how much back pressure the 350 needs, but I'd guess it is minimal, compared to the E55.
You consider cutting out your resonator, too and do a real straight pipe?
I want to do both to mine. I've done the resonator, but been scared of the secondarys, since I don't wanna loose bottom end.