Brings true 2D mapped water-methanol injection delivery to your EFI (Electronic Fuel Injected) and forced induction vehicle
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Enhance the sound of your BMW's exhaust with this exhaust system from Milltek Sport
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Universal exhaust tips with a swivel adjustability to fine tune your exhaust. 2.5" Inlet & a 3.5" Double Wall, Angle Cut Outlet
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4715562
Mfg#:
049478LA03-04KT1
In Stock
ON SALE!
SAVE 10%
$227.96
This product was last offered at the strikethrough price on 06-13-2026
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Improves engine performance by providing cooler air to the turbo while eliminating intake restrictions
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For Pre-2025 vehicles with the earlier Gen2 B58 engine only - Not compatible with the later Gen3 B58 engine
Manually control muffler valve funtions with the click of a button with this plug and play kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with electronic valves only
Designed to work in almost any application where you have 3/8" (9.49mm) quick connect fittings and need to add a flex fuel sensor!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Universal Product - Please confirm your fuel line size prior to ordering
Universal exhaust tips with a swivel adjustability to fine tune your exhaust. 2.5" Inlet & a 3.5" Double Wall, Angle Cut Outlet
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Can be used on any 2.5" exhaust piping. Measure before ordering.
Brand:
ES#:
4658277
Mfg#:
049478LA03-04
In Stock
ON SALE!
SAVE 10%
$56.99
This product was last offered at the strikethrough price on 06-13-2026
Serious engine oil cooling for the most demanding engines
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For custom applications only. Not a direct bolt on.
Lower IATs, increase cooling system reliability and efficiency! Featuring durable all-aluminum construction & TIG-welded billet aluminum end tanks.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
5373996
Mfg#:
008765LA01KT
In Stock
ON SALE!
SAVE 13%
$1223.99
This product was last offered at the strikethrough price on 06-13-2026
Plug-&-Play piggyback tuner offering a wide range of adjustments - Easily adjusted via Dinan's Bluetooth app - Includes upgraded 4-Year/50,000 Mile Factory-Matching New Car Warranty!
Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes! For vehicles with the Gen3 B58 (B58N / B58TU2) engine only
Brand:
ES#:
5425665
Mfg#:
D440-0201-W
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.
$2362.99
This product was last offered at the strikethrough price on 07-08-2026
Flows up to 26% more than S58 inejctors and 60% more than B58 injectors
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with the Gen2 B58 (B58C / B58D) engine only - Not compatible with the earlier Gen1 B58A or Gen3 B58N engines
Our name says it all. That's why ECS Tuning is dedicated to providing our customers with the broadest possible assortment of engine tuning options at a range of prices and options to fit any budget. Start small and grow your car into something special with performance engine upgrades from a company that has tuning in its name and its blood.
Lifetime Replacement
