E46 M3 Supersprint Cat-Delete Pipes (Deletes Cats In Stock Manifold)

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The cats in the stock US manifold are the biggest enemy in making more power from the S54. The cats as part of the stock header are a major blockage to airflow so removing them will unlock a lot of missing horsepower. Ideally, the best way to do this is with a set of Supersprint tubular headers. But if you want to keep your stock manifold and 'gut' the stock cats from them these pipes are the way to go. You can get a lot of the power gains of a true header system at a fraction of the cost. The stock cats are cut along an existing weld in each manifold and this piece is welded in place. Special software or modules will be required to keep fault codes and check engine lights from coming on. Bungs are preinstalled for the post cat O2 sensors. Any Supersprint section 1 piece will bolt on to these downpipes.

Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preferance. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Most Supersprint systems are built with larger diameter piping to improve exhaust flow which helps the engine do less work and make more horsepower! Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation!

Fitment note: welding is required to install these pipes on the stock manifold. Once the stock manifolds are removed, cut along the existing seams for the stock cat and remove them. Then re-weld these pipes onto the original manifold.


section:manifold cat-delete pipes

connects to:stock or Supersprint section 1

material:T304 stainless steel


This is a race exhaust system which alters or deletes the emissions equipment on your car, and may not meet emissions standards in all states. Because of this, we require a waiver of emissions compliance to be signed and sent in to TMS. You can download the waiver here.

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW Z3 M Roadster M Coupe

T#: 388625 | Part#: 044011KT
961.95 $961.95
Ships on Oct 13, 2020
E46 M3 Supersprint Cat-Delete Pipes (Deletes Cats In Stock Manifold)