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  1. 4.6L Talk
    I have a 2003 mustang gt. Have had bbk off road x, mil eliminators with flowmaster 40 series catback system. I just got pypes long tube headers, k&n fip kit cai, 78mm bbk throttle intake. And the diablosport predator. So, I have read some good things about both Coastal Dyno and Ramseys...
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