All hardware required for a successful install utilizing high quality aftermarket components
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Street exhaust for E90/E92 N54 & N55 cars
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Improve your exhaust note and get rid of the restrictive OEM muffler
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4" Performance High Flow catted downpipe upgrade for N55 engines
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Fuel control and emissions control sensor
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Brand:
ES#:
2580855
Mfg#:
11787558055
In Stock
$178.99
This product was last offered at the strikethrough price on 04-06-2026
Go from mild to wild with the press of a button! For E90/E92 N54 & N55 cars
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Brand:
ES#:
4001141
Mfg#:
003378TMSKT
In Stock
ON SALE!
SAVE 10%
$1835.87
This product was last offered at the strikethrough price on 05-02-2026
3" Stainless Steel Downpipes with High Flow Catalytic Converter
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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 06-04-2026
Gasket that is between the turbo and down pipes, 2 required
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4" Performance High Flow catted downpipe upgrade for N55 engines, kit includes clamps and gasket.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! For vehicles with production date after 08/13. DME tune is recommended. Installation without accompanying For vehicles with production date after 08/13
Brand:
ES#:
4158855
Mfg#:
10302011KT
In Stock
$576.99
This product was last offered at the strikethrough price on 04-29-2026
From stock exhaust system repairs to polished stainless steel performance exhaust, we have exhaust pipes, mufflers, resonators, and catalytic converters from the most respected suppliers in the business. Go loud, stay soft, look good with exhaust parts and systems from ECS Tuning.
Partial Replacement
