Just removed the cats and replaced with Steeda cat delete pipes. The car sounds angry at idle and really pissed off when you get on it. Now it is maybe a little too loud and raspy with the occasional backfire on deceleration. I am keeping the cat delete pipes on. Any recommendations on a deeper exhaust sound? I'm open to different axle backs although the Roushs were about perfect with the factory cats.

 

borla s types or gt500's with a resonator delete sound awesome. Borlas are a bit louder and meaner then the gt500s so i think the borlas would suit you well.