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i rekon really loud cars.. deter women.. they'll probz just look at u and say "what a looser" ;)

Like the driving add when that guy does stupid thing son the road and everyone does the little pinky haha.

Twin 3" from Turbos FTW :(

depends if its NA or forced induction...

If you think your rb25de with a 4 1/2 cannon cuts sik with more power... Then tempe has your next set of wheels.

NA Needs to flow but not as much as a forced ind. motor.

2.5" - 3" max for NA.

depends if its NA or forced induction...

If you think your rb25de with a 4 1/2 cannon cuts sik with more power... Then tempe has your next set of wheels.

NA Needs to flow but not as much as a forced ind. motor.

2.5" - 3" max for NA.

As VashR31 said... with NA you *can* have too big an exhaust. 2.25 - 2.5" is the largest you want to go... after that you start to loose power down low. I had a 3" JASMA turbo exhaust on my NA 33 when I got it... put a 2.5" custom setup on it and it's got a noticeable torque increase down low in the rev range.

For a turbo however, the backpressure is generated by the turbo itself... after that you want as much flow as possible. On a turbo you could run 6" all the way from the turbo, straight out and it would go beautifully... and be freaking loud! In reality though, anything larger than 3.5" is just for show... sure it won't do any harm to performance but it'll drone like buggery and be way too loud... not to mention defectable ;)

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