Quote:
Originally Posted by theDreamer
For turbo you can use your exhaust you have, but if you want to move above 480whp you will need to move to a 3" exhaust.
|
This is not true at all.
The dual 2.5" F.I exhaust will be just fine with a properly flowing turbo system. I have customers making over 650+whp with dual 2.5" exhaust systems (350z single turbo), and there is still room for more. The test mule for the twin scroll kit made 550whp with no sighn of slowing down.
Dyno graphs and videos are here:
Boosted Performance single turbo results
There is a big misconception here (forced indction section) about exhaust sizing and the ability of a free flowing 2.5" dual exhaust system to make power.
I am confidend that a 6766 T4 1.32 a/r twin scroll turbo kit will make close to 700whp (or deep in to the 600's) with a proper build and a dual 2.5" exhaust system.