Travose21

iTrader: (22)

what is your exhaust setup. and is mine killing me.
408 with kooks 1 7/8 headers to a 3 inch y to a 4 inch flowmaster merge to a slp loudmouth exhaust. should i get a set of true duals or put a cutout on it after the merge. by the way my applaction is on nos

CAMSTER

iTrader: (10)

2.5 dual exhaust is the way to go if you intent to keep a with sensible sound levels as the dual 3" get much louder, in my case i have four mufflers, 2 rounds and two ovals Magnaflows, and they perform real good and sound great, just adds lots of wight, and yes i have dual 3", and 12.8 compression on e85 441Ci ls7 N-A, the beauty of 4 mufflers is at wide open throttle is really quiet, still, loud in iddle.

Travose21

iTrader: (22)

anoyone else wanna chime in please

zracer323

iTrader: (12)

There's no way that is holding you back very much at all. Throw in a cutout for max power. Dual 3" pipes can handle a lot and so can a single 4" pipe.

Travose21

iTrader: (22)

ok cool

Travose21

iTrader: (22)

Any more thoughts

Daniel0026

True duals would be a very good idea. Another suggestion would be to go with 3.5 if you can fit it with ground clearance. Ive got a blown 408 and i run 3.5 with extremly low restriction mufflers. Which is my suggestion number 2. those slps are pretty good but if you dont mind the noise, go with a thinly packed and smalll baffeled glasspack to reduce any possible backpressure. Also i agree with ^, keep what you got and add cutouts for the track. Prob solved!

Travose21

iTrader: (22)

Ok cool then that's what ill do

01ssreda4

iTrader: (96)

That's cool and all except he doesn't have that. He does not have dual 3 inch pipes out the back, and doesn't have a single 4 inch out the back. He has a loudmouth, that's 1 three inch pipe. So that's his restriction, all the other crap in front of it doesn't matter. A 4 inch cutout after the merge solves the neck down issue here.

dodson55

iTrader: (18)

^^^^exactly cheapest easiest fix and will still get max power