cm02WS6

Kook's LT and custom 3" catted Y are installed. The car feels good and I can tell an increase in power and a slight increase in sound (I could handle a little more of both though!). I know I'm sacrificing power with the stock muffler, but how much do you guys think? If anything, I would go with a Magnaflow muffler for its high flow and deep tone. I was thinking that I would drive it for a little bit, dyno it after I get it tuned a little better with the MAFT, then do the muffler, retune and redyno. Its probably wasting a little money on the dyno sessions, but the engineer in me likes to quantify things! So do you think the stock muffler is hurting me a lot? TIA,

Chris

Kev98Ta

iTrader: (4)

Defintely get yourself a catback!!! A stock WS6 catback flows decent but, you're leaving some power on the table with one. Magnaflow is an excellent choice.

Julian

https://ls1tech.com/forums/showthread.php?t=135980&highlight=cutout+stock+exh aust+dyno

This guy only gained 6RWHP with the cutout on a stock exhaust. That's pretty damn good, of course he doesn't have headers. Just get a cutout for it, then let the engineer in you dyno it opened and closed and see what you get.

JimMueller

iTrader: (9)

The difference between running with an open cutout vs. a closed cutout on the stock cat-back is about 25rwhp & 20rwtq on my setup.

Julian

yes, but you don't have the SS/WS6 exhaust, which is less restrictive than the Z28/firebird exhaust.