bumpinwheels95

hey guys i want to replace my intake manifold and i was wondering what i would need (if any) to replace one from a 99 gt.

is it a simple take off put new one on or do i need other parts?

also where should i look to get a new intake manifold

thanks justin

hotrod7687

Im not sure the 99-04 PI manifolds will fit a non PI car.

When you do a PI swap you have to change the manifold, the 96-98 will not fit the pi heads.

bumpinwheels95

i need new headers when i do this wtf i thought i could simply switch the two out

II 98 GT II

You can't do a straight swap without improvising. Go to Livernois Motorsports' website. They sell a PI intake manifold set up with adapter plates (I think) so that it will fit NPI heads.

I have heard of people doing a PI intake swap onto NPI heads, but you're going to need plenty of silicone gasket maker, and the fit and finish won't be very good. I would advise either getting the manifold from Livernois or just doin a full PI swap.

amoosenamedhank

Don't mess around with just the manifold, all or nothing is how I see it. If you can't afford the full swap now save your money until you can.

lizzyfan

+1

SINISTER

Also, just swaping the manifold over will not give you much improvement. The power of the PI engine over the NPI engine comes from the different heads and cams that were used. I agree that you should save some more money up and do the complete PI swap all at once. This will give you the power you want, and you will avoid having to do the same work twice.