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BMW E93 Cabrio M3 4.0 V8 '07 -> '13

Exhaust components

2 x Ø65 mm system, 100% Stainless steel
The exhaust system for BMW M3 E93 4.0 V8 is composed by a front pipes left + right with or without a metallic catalytic converters, "X-Pipe"(resonated or not), and rear mufflers (available in 3 types)

The catalytic converters, as in the Supersprint tradition, are replaced by a HJS metallic units with 100 cells per square inch. They are much more efficient and free-flowing but at the same time offers an optimal reduction of pollutant gas.
The front catless pipe (decat pipes) are for race use, a ECU tune is recommended.
There's also a resonated version of the decat pipes, that offer a smoother and more refined sound, with less metallic tone.

The centre section is available both in silenced and unsilenced version. The silenced is recommended to get stock-like levels of comfort when fitted with the homologated rear exhaust. To get a more aggressive but still road use compatible setup the unsilenced x-pipe coupled with the homologated rear exhaust is recommended.

For track use or to enthusiasts that wants a very raw and involving sound there are two choices of separated rear mufflers.
The "Racing" mufflers give a very deep tone. Not recommended on DCT equipped cars.
The "F1 Race" mufflers have a very tricky internal design, specifically designed to increase the high pitch tone at high revs.

The full racing system (catless front pipes, unresonated x-pipe, race or F1 race mufflers) weights 27.7 KG against 44 of the OEM system.

As the system is completely modular, it can match any needs in terms of sound and performance.

The look is the perfect match of sportiness and class, with a quad pipes setups (80 mm), perfectly integrated in the bumper line, for a sporty but still elegant result. The outlets are lipped on the homologated version, lipless on the race ones. 
With E.E.C. homologationWith E.E.C. homologation
Component E.E.C. homologation valid only when fitted to the specific Supersprint homologated rear exhaustComponent E.E.C. homologation valid only when fitted to the specific Supersprint homologated rear exhaust
Compatible with the OEM catalytic converterCompatible with the OEM catalytic converter
For racing use onlyFor racing use only
Discontinued Product. Available while stock lastsDiscontinued Product. Available while stock lasts
Threaded bung for oxygen sensor providedThreaded bung for oxygen sensor provided
Oval endpipeOval endpipe
Twin oval endpipeTwin oval endpipe
Flat oval endpipeFlat oval endpipe
With certificate of authenticity - Compliance to sound regulationsWith certificate of authenticity - Compliance to sound regulations
With certificate of conformity for classic exhaust designWith certificate of conformity for classic exhaust design - Internet Partner