Originally Posted by laxking012
Really? why is that? I'm only 17 so I'm still learning, but it seems to me like bigger would give better flow giving better performance? Any help is greatly apprciated.
Yeah if you go too big then you lose your back pressure or have too much back pressure and that can cause all kinds of problems. I have an 84 Chevy K10 with a sbc 400 in it and I have dual exhaust that is 2 1/2" pipe feeding into Flowmasters with it dumping down right after the flows just before the rear axle. Yeah it is loud when I gun it but normal driving it aint too bad. For a V6 tho you might want to consider around a 2" pipe if going with single exhaust. That should give you about the right amount of back pressure you need to run right.