CTS BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW G80 M3 S58 3.0L

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Performance exhaust options from the best BMW aftermarket producers and the most reliable replacement maintenance parts are all at Turner Motorsport. Over time, factory exhaust on the cleanest examples of BMW heritage shows their age. Our factory replacement exhausts are just what you need to keep your favorite car in showroom condition or finish off your restoration. If you are looking for a bump in sound and power, you can also find our performance options like Headers, Downpipes, and Mufflers from Corsa, DINAN, and others on this page.

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CTS Turbo High Flow Catted Downpipes
CTS Turbo High Flow Catted Downpipes
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTS - Corporate Logo
T#:18899144
Part#: CTSEXHDP0053CAT
In Stock
$ 899.99 USD
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$ 899.99 USD
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CTS stainless steel downpipes allow for faster spool, better transient boost response, higher boost, and great sound. High-Flow CATS are compatible with factory mid-pipes. You should expect strong torque gains when paired with appropriate tuning software. CAD simulation is used to streamline the flow of exhaust gasses and ensure seamless integration with the factory and CTS exhaust components. Many hours of R&D were spent to ensure a perfect fit, smooth exhaust flow, and excellent sound. Features: Durable 304 food-grade stainless steel Laser-cut flanges Factory-like placement of O2 sensors Designed using the latest 3D scanning technology LHD/RHD fitment Exhaust flow simulated with CAD software to ensure optimal flow routing Perfect fit with factory or aftermarket mid-pipes Aggressive sound – really makes that S58 scream Software tune is required to avoid CEL! Make sure your software is compatible with high flow catted downpipes!
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CTS Turbo Exhaust Crossover Pipe - G80/82 S58
CTS Turbo Exhaust Crossover Pipe - G80/82 S58
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTS - Corporate Logo
T#:51075056
Part#: EXH-TP-0021
Ships in 7 Business Days
New Item
15% off MSRP $ 249.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 212.99 USD
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15% off MSRP
$ 249.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 212.99 USD
Free Shipping
Add to Wish List
Maximize your BMW G8X S58’s power with the CTS Performance Crossover Pipe. Replace the restrictive factory intermediate pipe with a high-flow design for better exhaust scavenging.
CTS Turbo Crossover Exhaust Pipe For G8X
CTS Turbo Crossover Exhaust Pipe For G8X
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTS - Corporate Logo
T#:24909581
Part#: CTS-EXH-TP-0021
Ships in 7 Business Days
$ 249.99 USD
Free Shipping
Add to Wish List
$ 249.99 USD
Free Shipping
Add to Wish List
The left side downpipe on the S58 connects to a "crossover" pipe that runs beneath the transmission and links up with the mid pipes on the left side. Unfortunately, the stock shape of the crossover pipe is oval to create enough clearance underneath the transmission. This alteration from a round tube to an oval causes turbulence within the pipe, leading to a restriction in exhaust flow. CTS Turbo has designed a crossover pipe to eliminate this turbulence that is created by the factory system and ditched the oval design for a round circular design for increased flow and horsepower!
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