The ProFlex Commander adaptive flex fuel system allows you to start making more power and running cooler with E85.
- Brand:
- Advanced Fuel Dynamics
- ES#:
- 4044378
- Mfg#:
- PCF-E39M5-K
Ships in 2 Business Days
BMW E39 Performance Parts & Upgrades
- Braking
- Engine / Drivetrain
- Essentials
- Exhaust
- Exterior
- Interior
- Lighting
- Racing Safety Accessories
- Software / Tuning
- Suspension
- Wheels
- Clearance
This kit provides consistent performance at all RPM levels, giving you confidence in tough situations.
- Brand:
-
- ES#:
- 4876179
- Mfg#:
- 5150-HPVSK-M60
Ships in 4 Business Days
$1399.99 USD
Free Shipping
on orders $49 and up
5150 Auto Sport BMW M60 / M62 Performance Valve Kit is a superb choice for BMW enthusiasts who demand superior engine performance and reliability.
- Brand:
-
- ES#:
- 4876182
- Mfg#:
- MAN-HPVK-M60
Ships in 4 Business Days
$1199.99 USD
Perfect for aggressive drag and road racing demands. Conservatively rated up to 505 ft/lbs torque capacity.
- Brand:
-
- ES#:
- 4475623
- Mfg#:
- BM12-HDR6
Ships in 7 Business Days
$1514.00 USD
Lifetime Replacement
Pep up your anemic M52! Build a powerhouse from this selection of ECS recommended simple bolt-on parts. How does an extra 20-30hp sound?
10X Entries Into Our F80 M3 Sweepstakes
For vehicles with a production date up to 09/1998 and Bosch alternator
- Brand:
-
- ES#:
- 3980381
- Mfg#:
- 528-M52-BOSKT
Ships in 4 Business Days
ON SALE!
Partial Replacement
$1564.99
$1526.42 USD
This product was last offered at the strikethrough price on
05-02-2026
Free Shipping
Partial Replacement
Pep up your anemic M52TU! Build a powerhouse from this selection of ECS recommended simple bolt-on parts. How does an extra 20-30hp sound?
10X Entries Into Our F80 M3 Sweepstakes
For vehicles with a production date from 09/1998 and Bosch alternator
- Brand:
-
- ES#:
- 3980383
- Mfg#:
- 528-M52TU-BOSKT
Ships in 4 Business Days
ON SALE!
Partial Replacement
$1564.99
$1526.42 USD
This product was last offered at the strikethrough price on
05-02-2026
Free Shipping
Partial Replacement
Featuring Koni Yellow shocks and H&R Race lowering springs
10X Entries Into Our F80 M3 Sweepstakes
- Brand:
-
- ES#:
- 2586757
- Mfg#:
- 50464-88KT
Ships in 4 Business Days
$1754.99
$1681.99 USD
This product was last offered at the strikethrough price on
10-01-2026
Lifetime Replacement
Featuring Koni Yellow shocks and H&R Sport lowering springs
10X Entries Into Our F80 M3 Sweepstakes
- Brand:
-
- ES#:
- 2586747
- Mfg#:
- 50464KT
Ships in 4 Business Days
$1754.99
$1681.99 USD
This product was last offered at the strikethrough price on
10-01-2026
Lifetime Replacement
Pep up your anemic M52! Build a powerhouse from this selection of ECS recommended simple bolt-on parts. How does an extra 20-30hp sound?
10X Entries Into Our F80 M3 Sweepstakes
For vehicles with a production date up to 09/1998 and Valeo alternator
- Brand:
-
- ES#:
- 3980382
- Mfg#:
- 528-M52-VALKT
Ships in 4 Business Days
ON SALE!
Partial Replacement
$1563.99
$1525.47 USD
This product was last offered at the strikethrough price on
05-02-2026
Free Shipping
Partial Replacement
Pep up your anemic M52TU! Build a powerhouse from this selection of ECS recommended simple bolt-on parts. How does an extra 20-30hp sound?
10X Entries Into Our F80 M3 Sweepstakes
For vehicles with a production date from 09/1998 and Valeo alternator
- Brand:
-
- ES#:
- 3980384
- Mfg#:
- 528-M52TU-VALKT
Ships in 4 Business Days
ON SALE!
Partial Replacement
$1563.99
$1525.47 USD
This product was last offered at the strikethrough price on
05-02-2026
Free Shipping
Partial Replacement
2X Entries Into Our F80 M3 Sweepstakes
- Brand:
-
- ES#:
- 2849925
- Mfg#:
- 1G2.9012A3
Ships in 4 Business Days
$5295.00 USD
Lifetime Replacement
2X Entries Into Our F80 M3 Sweepstakes
- Brand:
-
- ES#:
- 2851706
- Mfg#:
- 1M3.9019A2
Ships in 4 Business Days
$4895.00 USD
Lifetime Replacement
2X Entries Into Our F80 M3 Sweepstakes
- Brand:
-
- ES#:
- 2849526
- Mfg#:
- 1B2.8010A3
Ships in 4 Business Days
$3995.00 USD
Lifetime Replacement
2X Entries Into Our F80 M3 Sweepstakes
- Brand:
-
- ES#:
- 2849337
- Mfg#:
- 1B1.8010A3
Ships in 4 Business Days
$3995.00 USD
Lifetime Replacement
2X Entries Into Our F80 M3 Sweepstakes
- Brand:
-
- ES#:
- 2849844
- Mfg#:
- 1G1.9012A3
Ships in 4 Business Days
$5295.00 USD
Lifetime Replacement
2X Entries Into Our F80 M3 Sweepstakes
- Brand:
-
- ES#:
- 2853367
- Mfg#:
- 2C2.8002A3
Ships in 4 Business Days
$3995.00 USD
Lifetime Replacement
More About Performance Parts & Upgrades
All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.