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Hi guys, I thought I would share some news on what we've been working on at the shop. We have ourselves a new player in the N55 upgraded turbo game. With such great results with the N54 turbo kits I figure why change things.  We will use all the same great parts (Precision, Tial, Vibrant) even the same size exhaust tubing, hell we are even using the same head flange.  There have been some tweaks but the new kit is practically the N54 kit. We just had to make some small adjustments to accommodate the new chassis.  So we know...

With many of our turbo kits now installed and on the streets we are finally able to capture some of them in action.  The first video shows the shop car which made 750hp@30psi tuned by AD Engineering.        This video shows our newest AWD kit which is now available making 534awhp@18psi with a PTE 6266 turbo. And then we have a little bit of street action going.  We hope to have more videos coming in as more of them will be installed in the upcoming months.    

Our test car was bought completely stock with the thought in mind of 335i owners looking to make more power from their N54 engines with an otherwise stock car.  The very first mod that was done on the car was the turbo kit.  Originally a bottom mount kit was designed using a Garrett 67mm GTX4088R turbo.  We were not very happy with the design of the log manifold and how laggy the car felt we were back to the drawing board to see how we can get some torque back into the engine without choking it up on top.  The...

We here at D.O.C. Race are always bringing you the best products we possibly can. We are also leading the way with industry changes and standards. With that being said, we now offer V-band flanges for all of our manifolds. We have actually been offering these for a while now but wanted to make sure the news got out to everyone! Why use V-band connections? V-band clamps are the preferred connection for many turbo housings and most any flanged joint. They have been used for years and have proven themselves in racing applications from the Indianapolis 500 to Bonneville land...

After developing the first turbo manifold design for the Horsepower Freaks 335i single turbo-kit, some changes were necessary to attain proper tuning feedback for their ECU parameters. While making these changes, we promoted a twinscroll version for the next design giving benefits across the board; including the tuning portion being addressed. A pair of open atmosphere dumptubes were aligned to the Tial MVS wastegates alongside of the 3″ turbo-back exhaust.. There really isn’t much room around the exhaust bank of the N54 engine, so this manifold design has completely changed from the original test-piece to implement the divided turbine housing...