BD High Performance Exhaust Systems for Chevy Diesel Trucks

Diesel engines need plenty of air to produce power and proper emissions. When you are pulling up a hill or accelerating, a high flow exhaust is critical for good engine performance.

The DuraMax engine is a high speed diesel that needs to breath. Increasing the exhaust to a 4" mandrel bent system with a high flow muffler improves the turbo response. Quiet, there is a DuraMax running.

On the original 6.5 engine installation, the turbo down pipe is attached and results in a crushed pipe. On the original 6.5 exhaust, there are flow restrictions at the turbo outlet pipe and in the muffler. The rest of the pipe is usually only a 2.75" diameter. Our 3" and 4" full mandrel bent aluminized pipe corrects the problem, giving the engine what it needs: improved turbo response and high airflow ability.

High flow air filters are recommended to complete these performance kits.

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