We are now offering a Billet compressor wheel that has been designed for those running a Ported Housing on a GTP38 stock turbo for the 99.5-03 7.3L Powerstroke. This combination will allow for the highest flow using your stock turbo.
Posted by Unknown on May 24th 2015
Spools up quicker, lower egts, more boost, quieter. Would highly recommend.
Posted by Jess on Feb 7th 2015
Decided to try it in a non ported stock housing. Rebuilt a old Van gtp38 turbo out of the E series vans for my 2000 Excusion. They have a 1.15 a/r non waste gated housing. Great response even with the big housing. No surge pulling 10k on a 80hp dp-tuner tow tune. Pulls hard on the top side in my 120hp race. Great option if you have a van turbo or the big non waste gated housing. Hands down a great upgrade over a stock gtp38 with the first gen wicked wheel. Thanks Clay for a great product
Posted by Eric S on May 3rd 2014
I switched from a wicked wheel to the Riffraff Billet wheel. This wheel spools up very quick and is a lot quieter to. At WOT it hits 30+ psi. (Did throw a high boost code) Would suggest getting a overboost code regulator. Great product. THanks Clay
Posted by Steve B on Mar 6th 2014
Product does as described. Quicker boost, quieter while cruising through town or on freeway at low boost. Gained about 4 psi. Truck pulls harder and faster. Thanks Clay.
Posted by Dave on Feb 23rd 2014
I ordered this along with a new Center Cartridge. My boost is up by 4 psi and I have a quicker throttle response. Thank you for another great product.
