Thread: A new person to muscle cars basic exhaust question

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I had a 350 in my nova and put in hooker comp headers with 3 in collectors and a 2.5 in exhaust system running dual 40 series flowmasters. This setup worked great for me, however i am now puttin in a 383 stroker and will be upgrading to 3in exhaust with turndown straight outta the mufflers for the most flow. I would say go with the 3 in exhaust and some good flowin mufflers and you will have much better flow and plenty of room if you decide to make more power. (dont we all?!!)

Originally Posted by 70_"SuperNOVA"

I had a 350 in my nova and put in hooker comp headers with 3 in collectors and a 2.5 in exhaust system running dual 40 series flowmasters. This setup worked great for me, however i am now puttin in a 383 stroker and will be upgrading to 3in exhaust with turndown straight outta the mufflers for the most flow. I would say go with the 3 in exhaust and some good flowin mufflers and you will have much better flow and plenty of room if you decide to make more power. (dont we all?!!)

haha yes more power is great, since im such a noob what kinda power gains do you get out of a 2 1/2 exhuast or a 3 inch exhaust are we talking 4-5 or are we talking 10-15? is a 3 inch too big for a minor motor like mine, dont i need backpressure?