VAST P&P Manifolds

[Don Supreme]

Has VAST or anyone actually conducted any testing to determine potential gains from this product?

[americanthunder]

interested as well

[kbjy11]

+1 for some testing

[Haenszel20v]

got some plans, boy?

[Don Supreme]

got some plans, boy?

Just trying to get the information out there so customers can make informed purchasing decisions.

[Raacerx]

no one has, far as I know. as its obviously true, not something you can easily swap for dyno runs, hahaha. The amount of material that is ported is relatively insignificant. I think any performance gains you are going to see, are going to be from a cooler engine bay and therefore cooler IAT and longer lasting engine pieces. I would think that the only place you would see a HP improvement, would be way way up high in the revs, where the smoothness of the transitions and such are more important and their effects exaggerated. I would guess, 5whp near redline, maybe ever so slight better spool, but I think thats quite optimistic. Every bit counts, but this isn't something u want to pull your engine for.

If your thinking of buying coated manifolds, the small price to get them ported is worth it IMO, but I certainly wouldnt do it if you werent pulling the engine already.

[Don Supreme]

Thing is it could be actually 1 whp diff, who knows without testing?

[Evilevo]

Thing is it could be actually 1 whp diff, who knows without testing?

1whp difference could also just be the difference in pulls without changing anything, LOL

[*Blue-Angel*]

Im sorry but after pulling my engine and looking at and in the stock exhaust manifolds i wouldn't even bother messing with them. they are worthless piles of crap. and there really should be products out. But there is absolutely nothing. the stock exhaust system is a horrible design all around. Your wasting your money porting the stock manifolds.

[Don Supreme]

Well, I guess the manufacturers of this product have no data for us.

Doesn't hurt to try.