Exhaust Pipe Size?

[Ludigdrums]

Well, I did a bunch of research and decided to go with the Dynomax Ultra Flows. Found out that my pipes could use replacing also, So, I'm redoing the thing from the collectors back. What size Pipes should I use...2.5"? I know that stock was 2.25". I have headers, taking off the cats, no AIR pump, Edlebrock Performer Intake, Holley Carb.

What's my best route.

Getting done Thursday!

Thanks!

- Jeremy

 

[Dave L.]

I'd go with 2.5.

Dave

 

[mvftw]

I went to 3 exhaust pros, all said to go with 2.25". We don't have the HP for 2.5". You need over 300hp for 2.5 to work better then 2.25". I see your from LI, I had mine done in Northport, very good work.

 

[silver 80]

I've got dual 2.5" with ulta flows sounds great.

 

[Bob Chadwick]

2 1/4's on mine. Was concerned about losing bottom end torque. No complaints.

 

[gooney0]

2.25" is my vote. Same as bobchad, you don't want to lose torque.

-Gööney0

 

[Fishman]

@350 hp, true dual, no cats, 2.5", 3 chamber flowmasters, and Hooker Super Competition w/ ceramic coated headers. Well... truthfully the headers are on my Christmas wish-list (I hope my wife reads this).