What Size?

[Revolution]

I'm looking to up my production from this years 610Whp to over 700Whp plus a 100 Hp nitrous shot! I'm currently running a 3.5 inch DP/exhaust on my Talon. Do you guys think going to a 4 inch well net me substantial gains? I see some of the Supras running very large combo's and claim huge gains! Is this fact or fiction?

 

[Revolution]

Anyone?

 

[Taffy]

What is substantial?

More than likely, you will not get much from the 3.5 to 4".