Guys I am trying to figure out the exhaust system I need for my setup that will be optimum for the street (not annoying) but non-restrictive at the track.
Right now I have a Jet-hot LT's with 2.5 true duels with a 16inch dynomax bullet on each side dumping at the axle on my bolt-on setup.
In my opinion if the exhaust ran out the back it wouldn't probably annoy me as much but I the true duels seem to rattle the console time to time

I am wanting to go back to a y-pipe design running it out the back like factory. Here's my thoughts http://store.summitracing.com/partde...0&autoview=sku (this would be 3inch from the headers to this y then it transits to 3.5 inch)
Then from the 3.5 inch y-collector run this 3.5-3.5inch Magnaflow muffler (engineermike has had great success with this one)
http://store.summitracing.com/partde...0&autoview=sku
From the muffler back I want to run 3.5 inch (all mandral bend) to my corsa clone tips.

Everyone think this would be sufficent on a 650-700RWHP setup daily driver??? I have heard clips of the magnaflow and they seem tame under normal driving but unreal at WOT .

Any Opinions

 

Any standard full exhaust system on a FI car will be really loud at WOT, theres no escaping it, unless you aren't making very much power.

I have Jet hot coated hooker LT's, Hooker Y-pipe, and Borla with the middle plate, and mine sounds good but not obnoxious at idle. But as stated above, once I go to WOT, eveyone for miles can hear me.