sixty5mustang289

Just out of curiousity, does anyone make an aftermarket intake manifold for the 4V 4.6? Any kind of better alternative than the stocker on my '03 Mach?

jmac72187

I haven't seen any manifolds short of sheet metal race manifolds. MMR makes a sheet metal manifold that is good up to 1800 HP. It is also about $2600 so I think that would be going a bit overboard.

Subotai_95

Hrrmmm.. this kinda goes along with the OP's question.. How much power will the stocker intake manifolds on the 4V's in the 03/04 mach's hold? I can't see ever having more than 600 to the wheels with my build, just curious as to whether or not I would need to hold off on that till I can afford a race manifold or not..

Trmachuno

Yep, I think in the best mods sticky radaman ports and polishes stock intake manifolds for a price. I think the p&p nets 10rwhp if I remember correctly.

USMCrebel

ding ding, your correct, but the intake manifold will hold plenty power to run with the best of em!

DaMach04

the only replacement i have seen is the fr500, but i think its actually the same thing, just amde for replacement of the 2v manifold.


our manifolds are the strangest ive eer seen, they are in a big circle, and i dont understand why they wrap around the bottom?

USMCrebel

the FR500 is a joke 2800 for our ****, with valve's that open and close to give higher RPMs....nothing a port/polish with ported heads can't do for cheaper.