BMW Catback Exhaust Systems for BMW 3 Series G20 (2019+)

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Catback Exhaust systems are designed to completely replace everything from your cats all the way back to your exhaust tips. Traditionally, if you are planning on upgrading your entire exhaust system, you will also need headers and downpipes.
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Milltek Sport - Corporate Logo
T#:5844265
Part#: SSXBM1160
Ships in 3 Business Days
$ 2,716.99 USD
$ 2,716.99 USD
Milltek's range of Cat-Back systems are perfectly suited to cater for anyone looking to improve their sound and aesthetics, designed as a direct replacement for the original system, available in multiple configurations enabling the owner to choose the increase in volume of their exhaust and/or add a more suitably aggressive tone. All Milltek products are made from 304L Aircraft Grade stainless steel. This quality material will ensure that your Cat-Back system will last through any harsh conditions. All Milltek's performance exhaust systems are designed with the customer in mind, and Millek caters to an ever-expanding range of vehicles. Milltek believes in continuous evolution, and their research & development team work throughout the year to deliver the most in demand solutions to all your performance exhaust requirements. All Milltek products are made in the UK and distributed to more than 90 countries worldwide, making Milltek Sport one of the most accessible performance aftermarket brands on the market.
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AWE - Corporate Logo
T#:598921
Part#: 3810-43020
Ships on Aug 10, 2026
$ 745.00 USD
$ 745.00 USD
Did you opt for the OE style tips when upgrading your exhaust? This kit allows you to swap out the OE style finisher with a beautiful Quad setup finished in Chrome silver. This will give the vehicle a more aggressive look!
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AWE Touring Edition Exhaust For G20 M340i
2X Entries For Our G87 M2 Sweepstakes!
AWE - Corporate Logo
T#:598905
Part#: 3015G20M340
In Stock
Starting at $ 2,875.00 USD
Free Shipping
Starting at $ 2,875.00 USD
Free Shipping
The Touring Edition Exhaust for the G20 M340i from AWE offers a perfectly balanced and tuned exhaust that will deliver power when needed without droning at cruising speeds. This exhaust is perfect for those who want a more aggressive response when getting on the throttle, but don't want to wake up the neighbors. Choose from the OE tip style, Chrome Silver tips, and Diamond Black Tips.
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Milltek Sport - Corporate Logo
T#:26305099
Part#: SSXBM127
Ships in 3 Business Days
Starting at $ 2,757.99 USD
Starting at $ 2,757.99 USD
Performance to blow your mind, not your ears! Improve performance and your vehicle's sound with this cat-back exhaust system from Milltek. This cat-back exhaust system features 76.20mm (3.00") T304 stainless steel construction, with quad 100mm (4") exhaust tips available in multiple finishes. With in-house production and engineering in the United Kingdom, they have been designing and developing exhaust systems for over 32 years. This experience has helped put Milltek on the map when it comes to performance exhausts, with offerings that range from Audi/Volkswagen to Porsche, BMW, and even Bentley. But, they don't stop there. Milltek has also made its presence felt in the motorsport community. Through partnerships with various race teams throughout the world, Milltek has gathered feedback on ways to improve their systems from enthusiasts at every level. Constructed of type-304 aircraft grade stainless steel, the quality is top-notch. To take it a step further, Milltek offers a lifetime warranty to the original purchaser.
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AWE Track Edition Exhaust For G20 M340i
2X Entries For Our G87 M2 Sweepstakes!
AWE - Corporate Logo
T#:598904
Part#: 3020G20M340
Ships on Aug 7, 2026
Starting at $ 1,845.00 USD
Free Shipping
Starting at $ 1,845.00 USD
Free Shipping
The Track Edition Exhaust for the G20 M340i from AWE offers a perfectly balanced and tuned exhaust that will deliver power when needed without droning at cruising speeds. This exhaust is perfect for those who want a more aggressive response when getting on the throttle, but don't want to wake up the neighbors. Choose from the OE tip style, Chrome Silver tips, and Diamond Black Tips.
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Dinan Experience Package (E) - G2X M340i/M440i
For vehicles with the B58TU (B58D) engine only
Call In Or Chat For Best Price!
Dinan - Corporate Logo
T#:45997489
Part#: G2XM340IM440IEKT
Back Ordered
$ 3,752.99 USD
$ 3,752.99 USD
Going beyond its Foundation counterpart, the Dinan Experience packages address not only the engine but also the chassis for a complete solution in the form of a wholly tuned Dinan vehicle. While adding power modifiers is often the go to path when beginning the modification journey, it does not fully consider what makes the car infinitely more enjoyable in scenarios outside of WOT pulls. With the addition of suspension upgrades integrated alongside the power adders the vehicle is transformed into something more than just the sum of its parts. It's a comprehensive answer to delivering additional technical capabilities in the form of increased engine performance and better handling along with improvements to aesthetics (looks and sound) in a package designed with reliability and safety in mind. This union of power and handling modifications results in a true OEM+ experience - the Dinan Experience.
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AWE - Corporate Logo
T#:598920
Part#: 3810-42018
Back Ordered
5% off MSRP $ 678.99

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

$ 645.00 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 678.99

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

$ 645.00 USD
Free Shipping on orders $49 and up
Did you opt for the OE style tips when upgrading your exhaust? This kit allows you to swap out the OE style finisher with a beautiful Quad setup finished in Chrome silver. This will give the vehicle a more aggressive look!
Show More Show Less