Exhaust ?

[bowtier]

Hey all, I've got a question for you. My '71 c10 is due for inspection end of Aug. & I need new headers & mufflers. I think I've decided on Hedman ceramic coated headers, & Flowmaster delta 40's. My dilemma is, I already have all stainless pipe that is still good but it's 2 1/4" dual & the headers are 3" out & I only see the flowmasters in 2 1/2" or 3" in the stainless ones. So I don't know if I should just scrap my good pipe & get dual 3" (my buddy's suggestion) or have the guys @ the ehaust shop use my pipe where they can & scab it all together in 2 1/4". I've been reading old threads tryin' to come up with something but just can't decide, I read somewhere 3" duals would be too much for a mild 350.... but this is a pretty stout 400sb so would it be ok? Any help would be appreciated.