Increase Cylinder Head Clamping Force Dramatically With ARP's Head Stud Kit for Your S14-Powered BMW!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
400HP+ - a complete power solution for your E36!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For OBD1 vehicles w/ Manual Transmission Only
Brand:
ES#:
5340065
Mfg#:
12-004O
Ships in 10 Business Days
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$11599.00
This product was last offered at the strikethrough price on 06-18-2026
Upgrade your supercharger to the Prima Plus kit from Active Autowerke! 500+ WHP!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with SMG transmission
Brand:
ES#:
3438848
Mfg#:
12-022
Ships in 10 Business Days
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 06-18-2026
360HP/300TQ - a complete power solution for your M3!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For OBD1 vehicles w/ Manual Transmission Only
Brand:
ES#:
5340063
Mfg#:
12-003O
Ships in 10 Business Days
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$8499.00
This product was last offered at the strikethrough price on 06-18-2026
425HP/295TQ - a complete power solution for your M3!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with 6 speed manual transmission
Brand:
ES#:
3438847
Mfg#:
12-021
Ships in 10 Business Days
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 06-18-2026
Bolt on oil cooler for increased engine oil cooler performance
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Improve your cars performance with a power pack that includes effective, easy to do upgrades!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! For vehicles with Bosch alternator only
Brand:
ES#:
4013686
Mfg#:
E36MS52PPKKT
In Stock at Vendor
ON SALE!
SAVE 19%
$797.99
This product was last offered at the strikethrough price on 05-02-2026
Improve your cars performance with a power pack that includes effective, easy to do upgrades!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! For vehicles with Valeo alternator only
Brand:
ES#:
4013693
Mfg#:
E36MS52PPKKT2
In Stock at Vendor
ON SALE!
SAVE 19%
$796.99
This product was last offered at the strikethrough price on 05-02-2026
Improve your cars performance in a afternoon with this effective and simple upgrade kit!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3618641
Mfg#:
S65PPKKT2
In Stock at Vendor
ON SALE!
SAVE 19%
$1500.99
This product was last offered at the strikethrough price on 01-03-2026
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.
