The stock exhaust layout for the N54 engine includes a set of cats in section 1 of the exhaust and a resonator in section 2 ahead of the mufflers. As with any turbo engine, the key to making more power is managing airflow. In the exhaust if you remove restrictions and increase piping diameter the exhaust gasses can flow faster which relieves work for the turbos. This set of Supersprint front pipes elminates the secondary cats located after the downpipes. This turns the N54 exhaust layout into something closer to the N55 engine layout. Combine this with the Supersprint section 2 x-pipe for a full straight through design.
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!
This part alters or deletes the emissions equipment on your car. Because of this, we require a waiver of emissions compliance to be signed and sent in to TMS. You can download the waiver here.
section 1 cat-delete straight pipes
downpipe; Supersprint section 2 or custom exhaust
T304 stainless steel
This item fits the following BMWs: with manual transmission only
2007-2010 E90 BMW 335i 335xi 335i xDrive - Sedan
2007-2010 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
2007-2010 E93 BMW 335i - Convertible
61 x 13 x 7
Price: $532.95 (USD)
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