Supersprint BMW Catalytic Converters for BMW Z4 M Roadster S54 (2003-2008)

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Our Catalytic Converters are the same quality construction as OEM but at a third of the cost! These are a direct replacement for the original BMW catalytic converter. These bolt on to your stock exhaust manifold and muffler, no welding required. We offer cats for both pre-OBDII BMW's (pre 1996) and BMW's with OBDII (1996+). We offer both 50 state legal converters and less expensive 49 state versions. Meets all EPA and CARB requirements. A factory warranty is included: 5 year/25,000 for 49 State versions, and 5 years/50,000 miles on 50 State legal versions.
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Supersprint Stepped Section 1 with Metallic Sport Cats - 63.5mm to 60...
Required for Supersprint 63.5mm Header Installation
Supersprint - Corporate Logo
T#:178004
Part#: 044902
Ships in 4 Business Days
$ 4,079.99 USD
Free Shipping
$ 4,079.99 USD
Free Shipping
Free ground shipping! These Supersprint metallic sport cats are for the Z4 M with Supersprint's own stepped headers. The piping is slightly oversized and the Supersprint sport cats are much freer-flowing than a traditional stock cat. With less restriction, less effort is required to move the exhaust gasses which will free up horsepower and torque. This cat section will only mount to the Supersprint full stepped headers (p/n 044001) and then to any section 2. These cats are built with O2 sensor bungs pre-installed after the cat if you wanted to extend your stock post-cat O2 sensors (however, special software may still be needed). 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 preference. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. 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 product modifies (but does not remove or defeat) emissions equipment. For this reason this product may not be CARB compliant, and therefore not emissions legal in some states. Consult local laws and regulations in your area. For more information on this product, feel free to contact our sales department.
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Supersprint - Corporate Logo
T#:178002
Part#: 789802
Ships in 4 Business Days
$ 4,162.99 USD
Free Shipping
$ 4,162.99 USD
Free Shipping
Free ground shipping! Supersprint sport cats for the Z4 M are designed to work with their cat-less headers or to replace factory US cats. The Supersprint sport cats are much freer-flowing than a traditional stock cat. With less restriction, less effort is required to move the exhaust gasses which will free up horsepower and torque. This cat section will mount to the Supersprint headers (p/n 787501) and then to any section 2. This section is built with O2 sensor bungs pre-installed after the cat if you wanted to extend your stock post-cat O2 sensors (however, special software may still be needed). 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 preference. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation!
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Supersprint Stepped Section 1 Straight Pipe - 63.5mm to 60mm - E85/E8...
Required for Supersprint 63.5mm Header Installation
Supersprint - Corporate Logo
T#:178005
Part#: 044912
Back Ordered
$ 1,155.99 USD
Free Shipping
$ 1,155.99 USD
Free Shipping

Free ground shipping! 

These Supersprint section 1 straight pipes are designed to follow the larger pipe sizing of the Supersprint stepped headers. With straight pipes and headers, there will be no cats in the system, making this perfect for race or track-only cars. The straight design will be louder and let more of the S54 rasp to come through. With headers and the Supersprint race mufflers the sound is simply intoxicating. You can use this section with any other section 2 pipe and muffler.

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!

 

section:section 1

connects to:Supersprint stepped header; any section 2

material:T304 stainless steel

 

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 Turner Motorsport. You can download the waiver here.



This item fits the following BMWs:
2006-2008 E85 E86 BMW Z4 M Roadster M Coupe

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