3 inch exhaust justified?

[yellow1995Cobra]

Hey guys,

Got the new engine coming, its a 420W shortblock. Still waiting on ED to get back to me on the heads im going to use. Guessing it will be afr205's though.

Anyways, i will have 1-3/4 MAC 351 swap headers from a fox body, from there on i would like to run a prochamber, do you think a 3" mid pipe to 3" flowtubes, to 3" mufflers is the way to go? Or will 2.5 suffice?

Thanks.

 

[yellow1995Cobra]

not forced induction, will be n/a

 

[CivicEater]

I would say the 3 would be well justified on a 420W with forced induction......Im no master tech though man

 

[yellow1995Cobra]

lol actually i read what you wrote, then posted, somehow it got before yours??

 

[yellow1995Cobra]

lol it did it again, this is weird

 

[CivicEater]

lmao spoke too soon.....U just beat me to that

 

[yellow1995Cobra]

OK this is F'd up haha