Diesel Downpipe Upgrade

Downpipe, dp

In a turbodiesel, the turbocharger creates all the necessary backpressure the engine needs for peak performance. Therefore, a free flowing, non-restrictive exhast system will theoretically yield the best possible performance. Aftermarket companies offer larger downpipes, and in some situations downpipes with smoother transitions. While performance improvements are small with only a downpipe swap, a performance downpipe completes any additional exhaust modifications so you know that you are getting the most from your exhaust mods (granted your aftermarket exhaust system did not come with an upgraded downpipe).

- Increased power.
- Can alter the sound for the truck, for a deeper, aggressive tone.

- Low performance gains compared to other mods.
- Difficult installations in some trucks where space is limited.

- Be sure to follow factory installation & torque specifications to ensure proper sealing of the downpipe to the turbocharger turbine outlet.

Power Gains: (estimated)

- Noticeable

All Power Stroke, Cummins, & Duramax engines.

While gains are relatively small for the price, a downpipe upgrade is encouraged for performance applications. What is the point of having a free flowing exhaust system with the restrictive factory downpipe? Many exhaust kits come with a new, upgraded downpipe.