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Originally Posted by Codeman Have seen many many people go for 3" on stock b18c turbo's with the likes of a To4e and turbo's a bit bigger than my GT28,
I have been told that while going to 3" is good for outright power, A 2.5" can support up to 600hp (proven) and will be much better for spooling around the street. So why go for 3"?
Will it be more responsive on the 2.5" round the streets compered to the bigger? But Will a 3" make more power? |
2.5" exhaust on rb30det maxed out at 340whp (told to come back with bigger exhaust), what car made 600hp with a 2.5" exhaust?
If you are aiming for 200wkw on a GT28 I would highly reccomend 3" (straight as possible) exhaust..
What ca18det makes a true 550atw figure in the country? LOL
You want as least possible restriction in the exhaust as possible for Forced Induction unless you have a lot of money to spend on extensive R&D