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Old 07-08-2015, 10:18 PM   #1
71ChevySS(straight6)
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Join Date: Mar 2013
Location: McPherson, KS
Posts: 96
Arrow What should I do for exhaust on my 250 I-6? Already have dual headers!

Hello again! The headers I bought from Jegs have a 2.5" collector. Should I run with the 2.5" pipe, or go smaller?

A little background, if it helps: the engine, a 250, was pulled and rebuilt, bored and stroked, tuned up just recently. I'm sure it's pushing more power than it was before, but I'm not sure how much more.

I want to run dual 45s out behind the tires with an X-pipe so that each side doesn't sound like a three-cylinder. What mufflers should I run?
__________________
'71 Custom-10 2wd longbed, 250 inline-6, NP 435 four-speed. Medium Bronze Iridescent. Farm truck deluxe.

Rat rod build: 1949 Crosley Station Wagon body on 1993 Dodge D350 chassis, Cadillac 500 powerplant.
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