just wanted to know before i do it.If i have racing beat headers and 2.5 inch straight pipe and dual it out with two apexi n1's will i have good or bad air pressure if you know what i mean.

And how loud would it be?

 

the car is a 91 n/a.

 

Straight pipe + apexi N1 = TOO DAMN LOUD!

 

+1

 

+2

 

Loud +3

and not sure what you mean by air pressure???... if you mean the aux port activation, on a S5 non turbo the Aux ports are powered by the air pump.

 

thats what i kind of ment thanks (icemark).

 

christ thats gonna be loud

 

prepare to bleed from your ears.