SD05GT

Flowmaster American Thunder is you want a rumble.
Mac Axelbacks if you want it loud.

dug562

I am in So Cal and I have an 08 with flowmasters and jba headers(carb certified) gives the gt that Cobra crispy poppy sound

jfkdm

thanks guys thats alot of info.

YotaMaster

Most any Magnaflow, Flowmaster ect cat backs are leagal, you just can't mess with the cats. I have an 01 GT with Magnaflow Magnapacks on it and they are loud as hell. Not sure if they make the Magnaflows for the newer models yet or not.

teejay76

I've been rollin with the Boomtube axlebacks for about a year now and with JBA shorty headers (CARB approved) for the past 6-7 months without any Po-Po's even lookin at me twice.

Even though the Boomtubes are "illegal" here in Cali, cops can't tell the difference. I have to admit though whenever a cop pulls next to me, I do get a little nervous about the exhaust.

Here's a link for a short video clip of my exhaust setup.

http://www.youtube.com/watch?v=ogEcY7RW2D0