4" Performance High Flow catted downpipe upgrade for N55 engines
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The Active Autowerke N55 downpipe for the M235i, 335i, 435i and M2 helps unleash some of the potential that is restricted by the OEM downpipe.
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Brand:
ES#:
4158430
Mfg#:
11-040-C
In Stock
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$1499.00
This product was last offered at the strikethrough price on 06-05-2026
Control your exhaust valves with the click of a button! Includes a standalone vacuum pump, wiring, vacuum hose, and controllers.
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Brand:
ES#:
4883843
Mfg#:
004788LA01
In Stock
ON SALE!
SAVE 10%
$99.99
This product was last offered at the strikethrough price on 05-02-2026
4" Performance High Flow catted downpipe upgrade for N55 engines, kit includes clamps and gasket.
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Brand:
ES#:
4158855
Mfg#:
10302011KT
In Stock
$576.99
This product was last offered at the strikethrough price on 04-29-2026
Choose between a 2.5" or 3.0" valved mufflers to complete your custom exhaust.
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Stainless Steel Muffler Delete for M235i/xi
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3.5" Performance High Flow catted downpipe upgrade for N55 engines, kit includes clamps and gasket.
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Upgrade the exhaust sound of your BMW - T304 Stainless Steel with Electronic Valves & Cast Y-Pipe
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Civilized performance for the discerning enthusiast - +6HP/+5TQ
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Brand:
ES#:
3149153
Mfg#:
D660-0047-BLK
Ships in 5 Business Days
11% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$1518.99
This product was last offered at the strikethrough price on 06-05-2026
Motorsport pedigree. Superior quality. Excellent sound. Milltek Race cat-back exhaust for enhanced performance.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Race version which includes provisions for the factory electronic control valve for the exhaust note you love.
Motorsport pedigree. Superior quality. Excellent sound. Milltek Race cat-back exhaust for enhanced performance.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Race version which includes provisions for the factory electronic control valve for the exhaust note you love.
Motorsport pedigree. Superior quality. Excellent sound. Milltek Race cat-back exhaust for enhanced performance.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Race version which includes provisions for the factory electronic control valve for the exhaust note you love.
Motorsport pedigree. Superior quality. Excellent sound. Milltek Street cat-back exhaust for enhanced performance.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Street version mufflers for a great tone without deafening noise.
Unleash the power of your car by reducing the biggest restriction in your exhaust
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with a production date from 07/2013+
Performance exhaust systems increase flows to improve throttle response and add power. Designed to reduce back pressure, our large selection of performance exhaust parts and performance exhaust systems is made from premium materials like stainless steel. Many are TIG welded and polished to make them as attractive as they are functional.
Lifetime Replacement
