Quote:
Originally Posted by Milwaukee
intake and exhaust is stock
it have rustproof stuff under so it be tough to clean off.
Would 4.10 to 3.73 be huge difference? I found them for free but still want 3.55 so I can cruise on highway faster and get little better mpg.
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If it has the same kind of setup as the 460 The intake is Purposely restrictive So that it'll quiet down the motor
So i'd suggest trying an Open element style intake or a cold air intake.
Exhaust what i would do is put a flowmaster or two flowmaster 2 chambers under it with turndowns aat the rear axle (I can't garuntee these will work because others on the forum will contradict it but I'm just saying what has worked for me)