This features a shorter tube than a cold-air system for increased performance in an easy to install kit
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply CARB certified for sale in all 50 states For 1999-2000 model years without HID headlights
Upgrade your supercharger to the Prima Plus kit from Active Autowerke! 500+ WHP!
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For vehicles with SMG transmission
Brand:
ES#:
3438848
Mfg#:
12-022
Ships on Nov 10, 2026
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$2249.00
This product was last offered at the strikethrough price on 10-25-2026
425HP/295TQ - a complete power solution for your M3!
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For vehicles with 6 speed manual transmission
Brand:
ES#:
3438847
Mfg#:
12-021
Ships on Nov 10, 2026
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$9375.00
This product was last offered at the strikethrough price on 10-25-2026
Improve your cars performance with this effective and simple upgrade kit!
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For vehicles with production date up to 02/2003 with Valeo alternator
Brand:
ES#:
3980996
Mfg#:
3027882KTKT
Ships in 4 Business Days
ON SALE!
$1955.99
This product was last offered at the strikethrough price on 05-02-2026
Improve your cars performance with this effective and simple upgrade kit!
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For vehicles with production date after 02/2003 with Valeo alternator
Brand:
ES#:
3980998
Mfg#:
3027882KKT1
Ships in 4 Business Days
ON SALE!
$1955.99
This product was last offered at the strikethrough price on 05-02-2026
Improve your cars performance with this effective and simple upgrade kit!
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For vehicles with production date after 02/2003 with Bosch alternator
Brand:
ES#:
3980994
Mfg#:
2532708KTKT
Ships in 4 Business Days
ON SALE!
$1955.99
This product was last offered at the strikethrough price on 05-02-2026
Improve your cars performance with this effective and simple upgrade kit!
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For vehicles with production date up to 02/2003 with Bosch alternator
Brand:
ES#:
3980993
Mfg#:
787406KKT
Ships in 4 Business Days
ON SALE!
$1955.99
This product was last offered at the strikethrough price on 05-02-2026
Heavy-duty yet compact tank that is compact and flexible allowing for a wide range of mounting on any flat vertical surface in the trunk.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Universal cooler used for: engine oil, transmission oil, power-steering, differential oil, and as a water/coolant heat exchanger.
2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Universal fitment design - modifications may be necessary to run this cooler
A deeper tone that eliminates the rasp of the M3
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Includes $75 in gift cards for future purchases!
Whether you're racing or upgrading your street car, this piston offers the perfect balance of strength and precision. Specs: 86.50 mm Bore – 1.220 in. CH, -9.40 CC
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
The Mishimoto Essentials Bundle is a comprehensive cooling solution designed to address the notorious "weak points" of the BMW E46 cooling system.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For vehicles with manual transmission
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
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
This features a shorter tube than a cold-air system for increased performance in an easy to install kit
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply CARB certified for sale in all 50 states For 1999-2000 model years without HID headlights
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.
