Quote:
Originally Posted by Plattus1000
They didn't want us to have too much fun, that's the reason. Everything about the 4.6is was for torque and power but this... This is garbage and I give less than 2 shakes what the reason was. This is deplorable for flow.
Jopecasa--- If you have a 4.6is, this is what's holding you back.
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Yes there is some restricting going on there. On my E39M5 I installed a set of the Evolve headers and man what a difference in power and breathing for the engine.