i-Club - The Ultimate Subaru Resource

i-Club - The Ultimate Subaru Resource (https://www.i-club.com/forums/)
-   Engine/Power - EJ25T (STI and 2006+ WRX) (https://www.i-club.com/forums/engine-power-ej25t-sti-2006-wrx-90/)
-   -   Grimmspeed downpipe doesnt work with ATP IWG (https://www.i-club.com/forums/engine-power-ej25t-sti-2006-wrx-90/grimmspeed-downpipe-doesnt-work-atp-iwg-252256/)

ddavis Jun 22, 2013 08:52 PM

Grimmspeed downpipe doesnt work with ATP IWG
 
Its a shame because this downpipe is the highest quality i've seen. Welds, flanges, everything is top notch. It has an awesome heatcoat on it, just doesnt work iwth my gtx3071 turbo :(. Swapped it from my CNT Catted Downpipe and instantly ran into problems. Only 2-3 lbs of boost and noise coming from turbo. The IWG is hitting the divorced lip in the pipe since atp uses an extra wide wastegate door. Just wanted to throw that out there to others that might not know.

Anybody need an awesome downpipe without a ATP Turbo? ha

awdorgtfo Jun 22, 2013 08:54 PM

Go ewg.

Heedz Jun 23, 2013 01:48 PM

hmm good to know.

ddavis Jun 24, 2013 01:47 PM

Im working with Grimmspeed to get the problem resolved now with ATP Turbos. Hopefully we can get this tweaked and sorted out. Its to nice of a dp to pass up.

ddavis Aug 2, 2013 07:16 AM

Ok ive been gone for vacation and just got back recently.

The easiest way I found to make this work is to bend the divorce lip 1/3 of an inch to give the wastegate that little bit of extra clearance. Works perfect now. Didnt need any cutting just a little bending with some vise grips and now it fits like a glove. Im sending Grimmspeed over the info so they can address the problem.


All times are GMT -7. The time now is 03:55 AM.


© 2026 MH Sub I, LLC dba Internet Brands