Quote:
Originally Posted by 87GNX
Mustang has a diff firing order, 4 valves, 4 cams.....if you drop in an x pipe delete the cats, the car sings at high rpm.
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The older 5.0L sounded badass as well. 2 valves per cylinder and a pushrod configuration, just like ours. True, different firing order, but it truly was a better exhaust system that rounded it out.