E90/92/93 335 Metallic Cat System
After the down pipes' outlet flanges, the cross section shrinks down from 65mm to 60mm, (still larger than the factory 57mm tubing size) and it is maintained constant all the way to the tail tips. Once again there are no crushed sections in the tubing as with the factory system for clearance. In place of the factory quad cat design, Supersprint uses 2 high volume / high flow 100 cpsi metallic race cats. These are placed further away from the engine for the lowest restriction and the best results. This product is legal only for racing vehicles that may never be used upon a highway and is not applicable or intended for street or highway use. The results of installing the complete Supersprint system are a phenomenal 26 hp with a torque gain over 20 lb/ft.
E90 325i/xi, 330i/xi (2006 +)
E91 330i/xi (2006 +)
Supersprint part number: 022 980 202
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