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BMW M3 Performance Engine Parts

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Blackline Performance Oil Cap Cover - Blue

ES#4475813 - FXXOCC-B - Blackline Performance Oil Cap Cover - Blue - Give your vehicle modern styling for years to last - Goldenwrench Supply Co - BMW

Give your vehicle modern styling for years to last

Brand:
Goldenwrench Supply Co - Corporate Logo
ES#:
4475813
Mfg#:
FXXOCC-B
In Stock
$60.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ReFlex+ Install Harness - Flying Lead

ES#4810316 - 900.1016 - ReFlex+ Install Harness - Flying Lead - Universal - Flying Lead Installation Harness - Motiv Motorsports - BMW

Universal - Flying Lead Installation Harness

Brand:
Motiv Motorsports - Corporate Logo
ES#:
4810316
Mfg#:
900.1016
In Stock
$95.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW S52B32US JE Piston Kit

ES#4842587 - 297170 - BMW S52B32US JE Piston Kit - JE Pistons Forged Piston Set BMW S52B32US 9:1 Compression Ratio - JE Piston - BMW

JE Pistons Forged Piston Set – BMW S52B32US – 9:1 Compression Ratio

Brand:
JE Piston - Corporate Logo
ES#:
4842587
Mfg#:
297170
Back Ordered
$1324.99 USD
Free Shipping

87mm Pistons (+.60mm)

ES#2915197 - JE297173 - 87mm Pistons (+.60mm) - Performance pistons for the enthusiast looking to bore out their engine and maintain compression at 11.5:1cr - JE Piston - BMW

Performance pistons for the enthusiast looking to bore out their engine and maintain compression at 11.5:1cr

Brand:
JE Piston - Corporate Logo
ES#:
2915197
Mfg#:
JE297173
Back Ordered
$1324.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BMW S50B30US 9:1 JE Pistons

ES#4842621 - 297179 - BMW S50B30US 9:1 JE Pistons - The JE Pistons BMW S50B30US 9:1 KIT is a high-performance piston set designed for the BMW 3.0L S50B30US engine. This kit offers a lower 9:1 compression ratio, ideal for forced induction applications like turbocharging or supercharging. - JE Piston - BMW

The JE Pistons BMW S50B30US 9:1 KIT is a high-performance piston set designed for the BMW 3.0L S50B30US engine. This kit offers a lower 9:1 compression ratio, ideal for forced induction applications like turbocharging or supercharging.

Brand:
JE Piston - Corporate Logo
ES#:
4842621
Mfg#:
297179
Back Ordered
$1324.99 USD
Free Shipping
on orders $49 and up

Turner Motorsport Aluminum Solid Transmission Mounts

ES#3438526 - 017730TMS03 - Turner Motorsport Aluminum Solid Transmission Mounts - Designed for track use to eliminate deflection and drive line slop - Turner Motorsport - BMW

Designed for track use to eliminate deflection and drive line slop 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
3438526
Mfg#:
017730TMS03
In Stock
ON SALE! SAVE 27%
$113.99

This product was last offered at the strikethrough price on
05-02-2026

$82.77 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supersprint Sport Muffler

ES#3024717 - 783226 - Supersprint Sport Muffler - A refined sound with improved flow - Supersprint - BMW

A refined sound with improved flow

Brand:
Supersprint - Corporate Logo
ES#:
3024717
Mfg#:
783226
Ships in 1 Business Day
$1321.99 USD
Free Shipping

S55 High Performance Low Pressure Fuel Pump - Stage 4

ES#4487992 - 601-0200 - S55 High Performance Low Pressure Fuel Pump - Stage 4 - Increased fueling for bigger power - supports up to 1000whp! - Precision Raceworks - BMW

Increased fueling for bigger power - supports up to 1000whp!

Brand:
Precision Raceworks - Corporate Logo
ES#:
4487992
Mfg#:
601-0200
Ships in 4 Business Days
$1319.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E9X M3 Magnum FORCE Pro 5R Stage 2 Air Intake System

ES#2190094 - 54-31662 - E9X M3 Magnum FORCE Pro 5R Stage 2 Air Intake System - Excellent sound & power - the ultimate performance intake! +12hp & +9lb/ft! - AFE - BMW

Excellent sound & power - the ultimate performance intake! +12hp & +9lb/ft! CARB certified for sale in all 50 states

Brand:
AFE - Corporate Logo
ES#:
2190094
Mfg#:
54-31662
EO#:
D-550-38
Ships in 3 Business Days
ON SALE! SAVE 10%
$365.00

This product was last offered at the strikethrough price on
09-01-2026

$328.50 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N55/S55 37cc Platinum Series Dish Extreme Duty Piston Set

ES#4685604 - 647000CE-6 - N55/S55 37cc Platinum Series Dish Extreme Duty Piston Set - Upgrade to Manley's Platinum Extreme Duty Pistons for increased performance! Stock 10.2:1 Compression Ratio - MANLEY - BMW

Upgrade to Manley's Platinum Extreme Duty Pistons for increased performance! Stock 10.2:1 Compression Ratio Std. Size

Brand:
MANLEY - Corporate Logo
ES#:
4685604
Mfg#:
647000CE-6
Back Ordered
8% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$1423.99

This product was last offered at the strikethrough price on
09-09-2026

$1309.99 USD
Free Shipping
on orders $49 and up

Turner Motorsport Power Pulley Kit

ES#3148226 - ppke36KT - Turner Motorsport Power Pulley Kit - Possibly the best horsepower-per-dollar available anywhere. No downsides, no compromises! - Turner Motorsport - BMW

Possibly the best horsepower-per-dollar available anywhere. No downsides, no compromises! 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with Bosch alternator only

Brand:
Turner Motorsport - Corporate Logo
ES#:
3148226
Mfg#:
PPKE36KT
In Stock
ON SALE! SAVE 15%
$382.99

This product was last offered at the strikethrough price on
06-13-2026

$325.54 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AMP Plug-and-Play ECU - NO Internal Wideband

The next evolution of the proven MSPNP-Pro platform, built on the same trusted MS3Pro Technology used in high-performance motorsports applications worldwide

Brand:
MegaSquirt - Corporate Logo
ES#:
5506687
Mfg#:
AMP-PNP-E36OBD2
Ships in 6 Business Days
$1299.99 USD

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.

Let us help you find the parts that fit your BMW

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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