Intake Manifold

[MTF]

I want to buy an intake manifold, livernois motorsports will port the stock one and it's so pricey I think buying is the ticket. Dyno n price please. I'll b doing headers off road mid, CAI n tune, TB and spacer, harmonic balancer, oil catch as of now. After paid off livernois 6.6 kit

Livernois only ports the heads!!!
The intake manifold is made out of plastic, there isn't any upgrade out there or tweaking to be done .

Stay away from the BBK throttle body and/or spacer, there are quite a few guys that tried that with no improvement and all resulted in poor drivability.

The 12% OD ATI harmonic balancer is only useful for Supercharged applications, for power gains.
But it will spin the power steering, alternator, water pump and AC compressor faster.

Headers and a different cold air intake will only give small gains (about 20-30 HP) with a Tune!!!