3" exhaust?

[97gt-svt]

I tried searching but came up with nothing. This winter I am going to be putting long tubes on and redoing the exhaust and I kinda wanted to run a full 3" but is this going to be over kill, or will 2.5" be fine. And does anybody else besides mac make a 3" cat back for my car?

 

[MustangMitch]

Id stay with 2.5. 3 inch sounds like crap to me.

 

[Quadcammer]

3 inch is way too big for your setup.

 

[mcaligiuri]

I have 3" all the way to the mufflers, and bbk longtubes, sounds awesome imo.

 

[Quadcammer]

youd most likely pick up torque going to a 2.5 setup

 

[MustangMitch]

I have 3" all the way to the mufflers, and bbk longtubes, sounds awesome imo.

This makes no sense why would you do that? You have three inch then it bottle necks down to a smaller pipe...

 

[SLOW95]

no need for 3 in. unless your upwards 500hp and higher, you will lose power if not.

 

[Midnight_Cobra]

You need 3" unless you make more than 500hp. Most terminators with 500 still have 2.5".

 

[Venomous Cobra]

3" is too big imo for your set up 2.5 you will be fine....3" does sound good...i think quick96cobra has full 3" exhaust and it sounds badass.

 

[97gt-svt]

Thanks for the info, I will stay with 2.5" when I redo the exhaust. I think it was quick96cobra's car that I heard that made me want 3", that thing does sound badass.

 

[Midnight_Cobra]

Yea it may sound really well, but you WILL lose power if you are not making 600hp. On a regular street car 2.5" will suffice

 

[Quick96Mystic]

I think it was quick96cobra's car

Yeep :thumbsup:

that I heard that made me want 3", that thing does sound badass.

Thanks man! :coolman:

 

[RippinSVT]

3-inch exhaust sucks because a 281 cube motor doesn't move THAT much air, even in most blown applications. You want to maintain good exhaust velocity, and 3" kills that. Once a motor starts moving enough air to warrent 3" without killing velocity, it's fine.


The exception being a turbo car...in which case go big.