n00b pulling out the credit card - school me if I'm making mistake (STEEDA an...
I had the Steeda cai with a custom tune on my 11 and it worked as advertised. As far as the exhaust you need to decide if you want loud or LOUD and how you feel about drone. Personally I like to be able to hold a conversation at 70 mph with the windows up so I like the GT500 or the Corsa. But every one has a dif opinion on sound. What I wouldn't do is spend the money on a cat back system. The gains are minimal to non and the cost is twice that of an axel back. My advice would be to add the axel backs and save $ for complete LT headers set up with high flow cats. My 2 cents
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2013 Mustang GT Fastlane Stage 3 Race Red-Matte Black GT 500 Stripes-2.3 Whipple-20" TF Chicanes-R888's-Brembos-Slotted/Drilled-Custom Katskin interior-Suspension and other goodies...603/498 http://youtu.be/wa73L4lF3Ws