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BMW E30 M3 S14 2.3L Performance Engine Parts

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VW-Audi 7mm Exhaust Valve stem seal / Viton (SET OF 10)

The perfect seal for repairing, replacing, or upgrading your valves and stem seals!

Brand:
Supertech - Corporate Logo
ES#:
4736130
Mfg#:
VS-VW7E-10
Ships in 9 Business Days
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CP-CARRILLO Connecting Rod Set - WMC Rod Bolts

ES#4620068 - CAR-CRS-S14-WMC - CP-CARRILLO Connecting Rod Set - WMC Rod Bolts - Significantly stronger and lighter than OE connecting rods! - CP Carrillo - BMW

Significantly stronger and lighter than OE connecting rods!

Brand:
CP Carrillo - Corporate Logo
ES#:
4620068
Mfg#:
CAR-CRS-S14-WMC
Ships on Aug 6, 2026
$1149.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Union Tee - 1/4 Quick Connect

Quick connect union T-fitting for 1/4" Nylon

Brand:
SnowPerformance - Corporate Logo
ES#:
2826282
Mfg#:
82040
Special Order: No Guaranteed ETA
$23.99 USD
Free Shipping
on orders $49 and up

Group A Pulley Kit

ES#3426698 - 12311311449KT - Group A Pulley Kit - Race-bred performance and reliability for your E30 M3! - For racing use only - Genuine BMW Motorsport - BMW

Race-bred performance and reliability for your E30 M3! - For racing use only

Brand:
Genuine BMW Motorsport - Corporate Logo
ES#:
3426698
Mfg#:
12311311449KT
Ships on Aug 21, 2026
$1696.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW S14 4 Cyl. 308-Degree - Camshaft

ES#3246286 - 0227D1080-01 - BMW S14 4 Cyl. 308-Degree - Camshaft - Aggressive Street and Track Camshaft Setup - Schrick - BMW

Aggressive Street and Track Camshaft Setup

Brand:
Schrick - Corporate Logo
ES#:
3246286
Mfg#:
0227D1080-01
Special Order: No Guaranteed ETA
$1619.99 USD
Free Shipping
on orders $49 and up

BMW S14 4 Cyl. 276-Degree - Camshaft

ES#3246288 - 0227D1760-01 - BMW S14 4 Cyl. 276-Degree - Camshaft - Mild Street Camshaft Setup - Schrick - BMW

Mild Street Camshaft Setup

Brand:
Schrick - Corporate Logo
ES#:
3246288
Mfg#:
0227D1760-01
Special Order: No Guaranteed ETA
$1403.99 USD
Free Shipping
on orders $49 and up

BMW S14 4 Cyl. 292-Degree - Camshaft

ES#3246290 - 0227D1920-05 - BMW S14 4 Cyl. 292-Degree - Camshaft - Street and Track Camshaft Setup - Schrick - BMW

Street and Track Camshaft Setup

Brand:
Schrick - Corporate Logo
ES#:
3246290
Mfg#:
0227D1920-05
Special Order: No Guaranteed ETA
$1403.99 USD
Free Shipping
on orders $49 and up

BMW S14 4 Cyl. 320-Degree - Camshaft

ES#3246287 - 0227D1200-02 - BMW S14 4 Cyl. 320-Degree - Camshaft - Aggressive Track Camshaft Setup - Schrick - BMW

Aggressive Track Camshaft Setup

Brand:
Schrick - Corporate Logo
ES#:
3246287
Mfg#:
0227D1200-02
Special Order: No Guaranteed ETA
$1619.99 USD
Free Shipping
on orders $49 and up

Oil Temperature Sensor And Gauge Kit - Green/White

ES#3173689 - oiltempgaugeKT - Oil Temperature Sensor And Gauge Kit - Green/White - The perfect combination for your oil temperature needs, a Turner oil sensor flange with a Prosport gauge! - Assembled By ECS - BMW

The perfect combination for your oil temperature needs, a Turner oil sensor flange with a Prosport gauge! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3173689
Mfg#:
OILTEMPGAUGEKT
Ships on Nov 30, 2026
ON SALE!
$196.99

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

$193.26 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Oil Temperature Sensor And Gauge Kit - Blue/Red

ES#3173690 - oiltempgaugeBRKT - Oil Temperature Sensor And Gauge Kit - Blue/Red - The perfect combination for your oil temperature needs, a Turner oil sensor flange with a Prosport gauge! - Assembled By ECS - BMW

The perfect combination for your oil temperature needs, a Turner oil sensor flange with a Prosport gauge! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3173690
Mfg#:
OILTEMPGAUGEBRKT
Ships on Nov 30, 2026
ON SALE!
$196.99

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

$193.26 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

WPC-Treated Performance Rod Bearing Service Kit

ES#4871861 - 11241310515KT - WPC-Treated Performance Rod Bearing Service Kit - Featuring Turner Motorsport WPC-Treated "Race Series" rod bearings for added wear resistance and longevity! - Assembled By ECS - BMW

Featuring Turner Motorsport WPC-Treated "Race Series" rod bearings for added wear resistance and longevity! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4871861
Mfg#:
11241310515KT
Ships on Jan 13, 2027
Auto Notify
ON SALE! SAVE 16%
$769.99

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

$650.52 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

JE Pistons BMW S14B32 13:1 KIT Set Of 4 Pistons

ES#4842711 - 312386 - JE Pistons BMW S14B32 13:1 KIT Set Of 4 Pistons - BMW S14B32 engine E30 M3 models and motorsport variants - JE Piston - BMW

BMW S14B32 engine E30 M3 models and motorsport variants

Brand:
JE Piston - Corporate Logo
ES#:
4842711
Mfg#:
312386
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JE Pistons BMW S14B23 8.5:1 Set Of 4 Pistons

ES#4842715 - 321360 - JE Pistons BMW S14B23 8.5:1 Set Of 4 Pistons - Upgrade your S14B23 engine with the JE Pistons 8.5:1 Piston Kit, built for ultimate reliability and performance in high-boost environments. Whether you're building for the track or the street, JE Pistons give you the edge. - JE Piston - BMW

Upgrade your S14B23 engine with the JE Pistons 8.5:1 Piston Kit, built for ultimate reliability and performance in high-boost environments. Whether you're building for the track or the street, JE Pistons give you the edge.

Brand:
JE Piston - Corporate Logo
ES#:
4842715
Mfg#:
321360
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JE Pistons BMW S14B23 8.5:1

ES#4842714 - 321359 - JE Pistons BMW S14B23 8.5:1 - Upgrade your S14B23 engine with the JE Pistons 8.5:1 Piston Kit, built for ultimate reliability and performance in high-boost environments. Whether you're building for the track or the street, JE Pistons give you the edge. - JE Piston - BMW

Upgrade your S14B23 engine with the JE Pistons 8.5:1 Piston Kit, built for ultimate reliability and performance in high-boost environments. Whether you're building for the track or the street, JE Pistons give you the edge.

Brand:
JE Piston - Corporate Logo
ES#:
4842714
Mfg#:
321359
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JE Pistons BMW S14B23 8.5:1

ES#4842712 - 321358 - JE Pistons BMW S14B23 8.5:1 - Upgrade your S14B23 engine with the JE Pistons 8.5:1 Piston Kit, built for ultimate reliability and performance in high-boost environments. Whether you're building for the track or the street, JE Pistons give you the edge. - JE Piston - BMW

Upgrade your S14B23 engine with the JE Pistons 8.5:1 Piston Kit, built for ultimate reliability and performance in high-boost environments. Whether you're building for the track or the street, JE Pistons give you the edge.

Brand:
JE Piston - Corporate Logo
ES#:
4842712
Mfg#:
321358
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JE Pistons BMW S14B23 13.0:1

ES#4842716 - 321362 - JE Pistons BMW S14B23 13.0:1 - Take your BMWs performance to the next level with the JE Pistons BMW S14B23 13.0:1 Compression Kit, built for those who demand the highest level of precision and reliability from their engine components. Perfect for track use or spirited street driving - JE Piston - BMW

Take your BMW’s performance to the next level with the JE Pistons BMW S14B23 13.0:1 Compression Kit, built for those who demand the highest level of precision and reliability from their engine components. Perfect for track use or spirited street driving

Brand:
JE Piston - Corporate Logo
ES#:
4842716
Mfg#:
321362
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible 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.

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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