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View Full Version : Another exhaust size question



malibujason79
11-11-2006, 01:34 PM
I was always told that 500 hp is the point from where you would go from 2 1/2" to 3" size pipe. It seems like alot of people disagree with that, and say anything over 400 hp go 3". Well my 406 is right on the border line of the 500 hp and i'm in the market for a new exhaust system. The cost of the 2 1/2" and 3" kits are not that far off in price, so which do i choose? I'm leaning towards the 2 1/2" with ultra flo's, this is a street car "toy", with a 4-speed and won't see any track time.
Jason

ProStreet R/T
11-11-2006, 03:22 PM
with a big ci sb I wouldn't put anything but a 3" on it.

nancejd
11-11-2006, 09:48 PM
http://www.popularhotrodding.com/enginemasters/articles/hardcore/0505em_exh/index.html

It takes a while to read through it, and then a little more to figure out what it means, but I found this helpful.