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S197 Shelby SectionThis section is for technical discussions pertaining specifically to the latest installment of the Shelby Mustangs; the Shelby GT, the CS6, and the awesome GT500.
I installed the 08-09 Bullitt mufflers today, they installed great and look great and line up almost perfect but they not really any louder, just a hair deeper than stock, I am wondering if they are less or more restrictive than the stock units because they are not made for the GT500 supercharged motor?
The 08-09 Bullitt has a special (Bullitt Unique) designed H pipe with a restriction plate in the "H" cross over tube, for less exhaust pulse restriction, thus making the exhaust note both deeper & louder.