When it comes to towing or racing, the ability to make power efficiently is often overlooked. The Sinister Diesel Pitbull Series Turbocharger for the 6.7L Cummins looks like a stock turbocharger, but is far more efficient. It's a simple "Drop In" turbocharger, so it fits in the exact OEM location with NO modifications necessary. The larger billet compressor wheel and upgraded turbine profile greatly reduces backpressure and allows for significantly increased turbine flow compared to the competition. This results in lower EGTs, and substantially increased power on the same tune!