The Duramax V8 is a great engine. Part of an ongoing group of diesel engines the DMAX company created and manufactured in 2001. Mechanics commonly install them in an assortment of larger vehicles like vans, pickups, and light-duty trucks. The Duramax 6.6 is particularly famous for being durable, long-lasting, and fuel-efficient with regular care and maintenance. Generally, you can get about 445 horsepower out of a 6.6 Duramax engine in an unmodified vehicle. So, how much horsepower can you get out of a 6.6 Duramax? Check out these quick tips for boosting your engine’s horsepower and discover the answer below!

Add a Tuner

Adding a tuner is different from providing a tune-up (which isn’t a bad idea on its own). Tuners are small on-board computers that deliver information to your engine and tell it how to do certain things. For example, factory presets determine fuel delivery, turbo pressure, the timing of the fuel injection, and more. Tuning resets these established limits to new ones, boosting the established parameters and creating a higher range of performance. It’s possible to install tuners on your own. But it’s best to discuss the process with your mechanic and select the right tuner for your vehicle.

Change the Turbocharger

Switching your current turbocharger with a high-performance one is a reasonably affordable change. Turbochargers compress air and bring it into the engine, which also allows for more fuel. The compressed oxygen burns easily, thereby enhancing the combustion process and adding more horsepower. Turbochargers are easy to install, with the right tools and a bit of knowledge. But check with the manufacturer’s guide and your mechanic to ensure you’re selecting an optimal turbocharger that works with your vehicle.

Alter the Exhaust System

An exhaust system upgrade is another choice many 6.6 Duramax owners pick to improve horsepower in their truck or van. Stock systems are usually smaller and more restrictive. Luckily, there’s a selection of high-performance exhaust systems out there. An extended high-performance exhaust system keeps back pressure down and helps the exhaust flow more easily. Both take some of the pressure off your engine so it can deliver more torque and horsepower.

Upgrade the Engine

So, how much horsepower can you get out of a 6.6 Duramax? The top range is probably 500. Pushing it past that level can run the risk of breaking the engine or otherwise causing engine failure. At that point, you might want to consider budgeting for an engine replacement. Keep looking for a later model of the Duramax. We offer the LB7 Duramax engine for sale in addition to other models. Contact us for a consultation! We look forward to hearing from you and working with you to get the most out of your vehicle.