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BMW E34 525i M20 2.5L

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BMW E34 525i M20 2.5L Performance Engine Parts

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14" Stainless Steel Locking Ties - Pack Of 4

ES#261435 - 010202 - 14" Stainless Steel Locking Ties - Pack Of 4 - Secure the exhaust wrap with stainless steel ties - DEI - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Secure the exhaust wrap with stainless steel ties

Brand:
DEI - Corporate Logo
ES#:
261435
Mfg#:
010202
Ships on Sep 29, 2026
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CP Forged Piston Set BMW M20 B25 Std.

ES#4759088 - CP-FPS-M20-B25 - CP Forged Piston Set BMW M20 B25 Std. - 9.5:1 Compression Ratio, Standard 84mm Bore - 5150 Autosport - BMW

9.5:1 Compression Ratio, Standard 84mm Bore

Brand:
5150 Autosport - Corporate Logo
ES#:
4759088
Mfg#:
CP-FPS-M20-B25
In Stock
Limited Qty Sale
$1349.99

This product was last offered at the strikethrough price on
07-29-2026

$1268.99 USD
Free Shipping
on orders $49 and up

FSB WMI Controller - V2 Universal

ES#4715229 - FSB-UNI - FSB WMI Controller - V2 Universal - Allows your JB4 to control a WMI pump and solenoid for dynamic progressive flow mapping! - Burgaflex - Audi BMW Volkswagen MINI

Allows your JB4 to control a WMI pump and solenoid for dynamic progressive flow mapping! For most JB4 applications.

Brand:
Burgaflex - Corporate Logo
ES#:
4715229
Mfg#:
FSB-UNI
In Stock
ON SALE!
$153.00

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

$141.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner Performance Chip

ES#3137201 - 524-510 - Turner Performance Chip - Wake up your BMW with dyno-proven gains by Jim Conforti - +15HP +15LB/FT - Turner Conforti Performance Chips - BMW

Wake up your BMW with dyno-proven gains by Jim Conforti - +15HP +15LB/FT Satisfaction guaranteed! Includes 30 day money back guarantee and limited lifetime warranty. -- For vehicles with automatic transmission and Bosch DME

Brand:
Turner Conforti Performance Chips - Corporate Logo
ES#:
3137201
Mfg#:
524-510
In Stock
ON SALE! SAVE 25%
$249.00

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

$186.75 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CP-Carrillo Connecting Rod Set M20 Pro-Xtreme

ES#4759093 - CAR-CRS-M20-XT - CP-Carrillo Connecting Rod Set M20 Pro-Xtreme - Upgrade To CP-Carrillo Connecting Rods! - 5150 Autosport - BMW

Upgrade To CP-Carrillo Connecting Rods! For Vehicles With 135mm Connecting Rods

Brand:
5150 Autosport - Corporate Logo
ES#:
4759093
Mfg#:
CAR-CRS-M20-XT
Ships in 3 Business Days
$2099.99 USD
Free Shipping
on orders $49 and up

1.25 Gallon Heavy-Duty Universal Methanol Tank - Clear/White

ES#4714702 - 1.25G-UMT-CL - 1.25 Gallon Heavy-Duty Universal Methanol Tank - Clear/White - Heavy-duty yet compact tank that is compact and flexible allowing for a wide range of mounting on any flat vertical surface in the trunk. - Burger Motorsports - Audi BMW Volkswagen MINI

Heavy-duty yet compact tank that is compact and flexible allowing for a wide range of mounting on any flat vertical surface in the trunk.

Brand:
Burger Motorsports - Corporate Logo
ES#:
4714702
Mfg#:
1.25G-UMT-CL
Ships on Sep 23, 2026
$69.00 USD
Free Shipping
on orders $49 and up

CSF Universal Large Single-Pass Cooler

ES#5470103 - 8371 - CSF Universal Large Single-Pass Cooler - Universal cooler used for: engine oil, transmission oil, power-steering, differential oil, and as a water/coolant heat exchanger. - CSF - Audi BMW Volkswagen Mercedes Benz MINI

Universal cooler used for: engine oil, transmission oil, power-steering, differential oil, and as a water/coolant heat exchanger. 2X Entries Into Our F80 M3 Sweepstakes
Universal fitment design - modifications may be necessary to run this cooler

Brand:
CSF - Corporate Logo
ES#:
5470103
Mfg#:
8371
Ships in 3 Business Days
$499.00 USD
Free Shipping

Universal Valved Muffler Kit - Single Inlet / Single Outlet - 3.0" (76mm) - 1 Muffler

ES#5457435 - UVM.76MM.X1 - Universal Valved Muffler Kit - Single Inlet / Single Outlet - 3.0" (76mm) - 1 Muffler - Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button - Valvetronic Designs - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button

Brand:
Valvetronic Designs - Corporate Logo
ES#:
5457435
Mfg#:
UVM.76MM.X1
Ships in 1 Business Day
ON SALE! SAVE 10%
$399.99

This product was last offered at the strikethrough price on
08-25-2026

$359.99 USD
Free Shipping

Universal Valved Muffler Kit - Single Inlet / Dual Outlet - 2.5" (63mm) - 2 Mufflers

ES#5457424 - UVM63MMDUALOUTX2 - Universal Valved Muffler Kit - Single Inlet / Dual Outlet - 2.5" (63mm) - 2 Mufflers - Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button - Valvetronic Designs - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button

Brand:
Valvetronic Designs - Corporate Logo
ES#:
5457424
Mfg#:
UVM63MMDUALOUTX2
Ships in 1 Business Day
ON SALE! SAVE 10%
$599.99

This product was last offered at the strikethrough price on
08-25-2026

$539.99 USD
Free Shipping

Hobbs Switch (30 psi)

Engages water-methanol system at 35PSI Adjustable from 25-50psi

Brand:
SnowPerformance - Corporate Logo
ES#:
2826280
Mfg#:
81081
In Stock at Vendor
$74.99 USD
Free Shipping
on orders $49 and up

Turbocharger Inlet Flange - Garrett G40/42/45 V-Band - 86mm ID

Offers a seamless transition from the turbine housing to your custom plumbing, minimizing turbulence and maximizing efficiency for high-horsepower builds. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
5446634
Mfg#:
GARROUTT4G4045
Ships in 10 Business Days
ON SALE! SAVE 15%
$37.99

This product was last offered at the strikethrough price on
09-03-2026

$32.29 USD
Free Shipping

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

Turner Motorsport Double Wall Slash Cut Exhaust Tips - 2.75 Inlet - 3.5 OD - Stepped Left And Stepped Right- Titanium Black Chrome

Your BMW's factory exhaust tips are fine for getting groceries, but if you've upgraded your valence or just want a rear-end aesthetic that matches your car's performance pedigree, "fine" doesn't cut it. It's time for an attitude adjustment. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5481264
Mfg#:
026732TMS03KTKT
Ships on Oct 29, 2026
Auto Notify
$279.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW M20 6 Cyl. 304-Degree - Camshaft

ES#3246269 - 005601040-00 - BMW M20 6 Cyl. 304-Degree - Camshaft - Aggressive Track Camshaft Setup - Schrick - BMW

Aggressive Track Camshaft Setup

Brand:
Schrick - Corporate Logo
ES#:
3246269
Mfg#:
005601040-00
Special Order: No Guaranteed ETA
$1189.99 USD
Free Shipping
on orders $49 and up

BMW M20 6 Cyl. 288-Degree - Camshaft

ES#3246272 - 005601880-00 - BMW M20 6 Cyl. 288-Degree - Camshaft - Aggressive Street and Track Camshaft Setup - Schrick - BMW

Aggressive Street and Track Camshaft Setup

Brand:
Schrick - Corporate Logo
ES#:
3246272
Mfg#:
005601880-00
Special Order: No Guaranteed ETA
$1189.99 USD
Free Shipping
on orders $49 and up

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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