hmmmm....

maybe a cause for dyno pulls.

same car. One with ****ty stock headers...coated. And one with a v2 manifold.

be interesting.

 

https://www.i-club.com/forums/showpo...9&postcount=24

 

http://www.cafepress.com/dpt

 

Already been done on a STi from Nabisco.

http://forums.nasioc.com/forums/showthread.php?t=996366

 

that wasn't on a stock car correct????? I didn't really read the entire thread but wasn't that car tuned? So changing any part effects the tune.

 

Ok...well someone call and ask for one...Jeremy....call em.

 

I don't think it was on a stock STi, but they did not tune the car at all. They would drive the car around for a few days letting the ECU try and learn the new manifold, then dyno it.

 

wow

 

The crosspipe in the picture -- the one that exploded at the weld -- is the stock one. I don't think Subaru is going to warranty it on Jeff's car

Pretty wild!!! I have NEVER seen that happen to an OEM crosspipe before! Seen it on lots of aftermarket headers and whatnot, but that's pretty crazy. But if it could happen, it would happen on Jeff's car, lol

That stock one was thermal barrier coated inside and out. That should protect the part from cracking like that, as it prevents heat cycling and therefore metal fatigue. It's really a shocker (not that shocker, sickos) on all fronts.




As for P&P&C OEM manifolds vs. aftermarket headers -- that one test was interesting but a custom tune is truly necessary for it to be worthwhile. Gruppe-S tuned two otherwise identical STI's (owned by two friends... members on here) who got GT30 kits and tunes from Moike. The P&P&C OEM manifolds (with stock crosspipe) car made slightly more power/tq than the car w/ headers but spooled 300 rpm quicker. Oddly enough, it seems like small turbos benefit more from headers and a replacement crosspipe like the Injen one, whereas larger turbos tend see no consistent gain from using an Injen crosspipe and make as much power with ported OEM manifolds as stainless headers, but the OEM elbows have better spool and response. Sort of odd that it would be that way, but all of the results we've seen have kept true to this. Plus the sound of the cast iron manifolds is great -- deep and clean -- and obviously the cost to have the P&P&C service done is significantly less than an aftermarket header.

Jeremy

 

jeeze jeff! that must be a huge power boost!

haha sorry man that sucks. how the hell did that even happen