Quote:
Originally Posted by Mikebrinda
Interesting, but:
In addition to the supercharger, Callaway adds a liquid-to-air intercooler, high-flow intake, low restriction exhaust, and larger fuel injectors. Appearance upgrades include under hood build plaque, carbon fiber injector covers, Callaway badging, dash plaque, embroidered floor mats, door sill panels, Callaway key fob, and authenticity documentation package.
How much lower restrictive than the factory version could their exhaust possible be and still be legal?
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HEADERS ..the only reason GM doesnt run headers is long term use..IRON manifolds last longer and do not give off as much heat... its not a factory car anymore ,its just another tuner car,sure its not built by the shop down the road,but its still a tuner car...It doe not have to meet all the requirements like GM,just as Hennessy does not,and as long as the part has a carb # its legal..