The ProFlex Commander adaptive flex fuel system allows you to start making more power and running cooler with E85.
- Brand:
- Advanced Fuel Dynamics
- ES#:
- 4044219
- Mfg#:
- PFC-E46M3K
Ships in 2 Business Days
BMW E46 Performance Engine Parts
- Camshaft
- Catch Can
- Connecting Rod
- Cooling
- Crankshaft
- Cylinder Head
- Diverter Valve
- Engine Girdle
- Exhaust
- Fueling
- Hoses
- Intake
- Mounts
- Oiling System
- Performance Package
- Pistons
- Pulleys
- Software
- Sprint Booster
- Supercharger
- Throttle Controller
- Turbocharger
- Water-Meth
The ProFlex Commander adaptive flex fuel system allows you to start making more power and running cooler with E85.
- Brand:
- Advanced Fuel Dynamics
- ES#:
- 4044225
- Mfg#:
- PFC-E46330K
Ships in 2 Business Days
Snow Performance Hyper-Sonic water-methanol injection nozzle
- Brand:
-
- ES#:
- 4362075
- Mfg#:
- SN0-N0800
In Stock
$31.99 USD
Free Shipping
on orders $49 and up
Increase power by containing exhaust heat - Lava
- Brand:
-
- ES#:
- 4028212
- Mfg#:
- TS-EW-L
In Stock
"Tuneable" to multiple performance settings!
- Brand:
-
- ES#:
- 4666704
- Mfg#:
- PFF5-4650
In Stock
$431.99 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
Performance muffler with round 2x80mm tips
- Brand:
-
- ES#:
- 3024754
- Mfg#:
- 787406
Ships on Oct 22, 2026
$849.99 USD
Free Shipping
A more aggressive sound and increased power
- Brand:
-
- ES#:
- 3024760
- Mfg#:
- 787513
Ships in 3 Business Days
$834.00 USD
Free Shipping
Brings true 2D mapped water-methanol injection delivery to your DI (direct fuel injected) and forced induction vehicle
- Brand:
-
- ES#:
- 3557781
- Mfg#:
- SN0-320-BRD
In Stock at Vendor
$833.99 USD
Free Shipping
Lifetime Replacement
Don't let hydraulic lifters limit your revs
- Brand:
-
- ES#:
- 3098444
- Mfg#:
- 086311700KT
Ships on Nov 6, 2026
$833.52 USD
Free Shipping
Lifetime Replacement
Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash.
- Brand:
-
- ES#:
- 4714891
- Mfg#:
- JB4-OBDII-CA
In Stock
$25.00 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
Pump does NOT have a check valve
This is Universal and Not a direct replacement for the Genuine Pump!
- Brand:
-
- ES#:
- 4140120
- Mfg#:
- F90000295
In Stock at Vendor
$203.99 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
Removes top speed limiter, raises rev limit to 8,250rpm, improves throttle response, and improves power output - max gains of 22hp and 16tq!
- Brand:
-
- ES#:
- 3604772
- Mfg#:
- N4S54MV
Ships on Aug 11, 2026
The perfect seal for repairing, replacing, or upgrading your valves and stem seals!
- Brand:
-
- ES#:
- 3129394
- Mfg#:
- VS-VBM6E
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
Possibly the best horsepower-per-dollar available anywhere. No downsides, no compromises!
10X Entries For Our 25th Anniversary Sweepstakes!
- Brand:
-
- ES#:
- 3082345
- Mfg#:
- PPK-S54-A-TKT
In Stock
ON SALE!
SAVE 25%
Lifetime Replacement
$354.99
$266.24 USD
This product was last offered at the strikethrough price on
06-13-2026
Free Shipping
Lifetime Replacement
Serious engine oil cooling for the most demanding engines
- Brand:
-
- ES#:
- 2855412
- Mfg#:
- MM0C-19
In Stock
$218.99
$196.99 USD
This product was last offered at the strikethrough price on
05-06-2026
Free Shipping
on orders $49 and up
Lifetime Replacement
Universal exhaust tips with a swivel adjustability to fine tune your exhaust. 2.5" Inlet & a 3.5" Double Wall, Angle Cut Outlet
10X Entries For Our 25th Anniversary Sweepstakes!
- Brand:
-
- ES#:
- 4715560
- Mfg#:
- 049478LA03-01KT1
In Stock
ON SALE!
Lifetime Replacement
$267.96
$254.56 USD
This product was last offered at the strikethrough price on
06-13-2026
Free Shipping
Lifetime Replacement
More About Performance Engine Parts
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.