I have been reading threads on this, this whole morning, thats how bored i am at work. But I have this rattle in my car, which alot of you say may be the heat shield, however my mechanic said it's the catalytic converter. I ordered a test pipe (cat) of an ebay for $40. I have been reading on and on how its illegal, however i dont care about emission or anything like that, however I love the Torque. On my Maxima (previous car) i had a test pipe installed, when i had the 2.75" exhaust I lost alot of torque, but when i switched to a 2.25" exhaust i think i gained more torque then usual with a straight pipe. So my question is it worth it to put a straight pipe on my 240, i have the stock exhaust for now. But swtiching to Apexi N1 in 2 weeks. So aside the legality crap. What do you guys think.????
P.S. Im doing installation tommorow so if you guys can answer asap.
Thanks alot..