Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply
affirm financing terms & conditions

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
affirm financing terms & conditions
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

BMW 135i Performance Parts & Upgrades

Sort By
Filter By
Return to Top

DS Series Coilover Suspension Kit

BC Racing took the best features from their BR Series Coilover, engineered components to improve driver experience, and are proud to present the BC Racing DS series with digressive piston damping that dramatically improves suspension feel and feedback. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
BC Racing - Corporate Logo
ES#:
4430638
Mfg#:
I-11-DS
Back Ordered
2% off MSRP

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

$1445.00

This product was last offered at the strikethrough price on
07-05-2026

$1415.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

DR Series Wheel Spacers - 45mm (1 Pair)

ES#4070202 - 9075725SW - DR Series Wheel Spacers - 45mm (1 Pair) - BMW wheel spacers made to work with stock and aftermarket wheels - H&R - BMW MINI

BMW wheel spacers made to work with stock and aftermarket wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
4070202
Mfg#:
9075725SW
In Stock
10% off MSRP

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

$259.99

This product was last offered at the strikethrough price on
07-01-2026

$233.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ST XA Performance Coilover System - Height And Rebound Adjustable - E82

Need to get low? ST coilovers feature a continuous thread construction for height adjustment from moderate to eXtreme! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Suspension Techniques - Corporate Logo
ES#:
4148234
Mfg#:
18220039
Ships in 5 Business Days
$1399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Control arm - lower arm

ES#3980871 - KTA255 - Control arm - lower arm - Easily replace your control arms! - Whiteline - BMW

Easily replace your control arms! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Whiteline - Corporate Logo
ES#:
3980871
Mfg#:
KTA255
Ships in 3 Business Days
$698.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 1 Single Sprung Organic Clutch Kit With Flywheel - 6 Bolt

The XClutch Stage 1 Single Disc Clutch offers a lightweight design for improved throttle response combined with an increased torque capacity, making it ideal for racing applications. Rated for 440 ft-lbs! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Vehicles with Production Date from 02/09 with 6 Bolt Crank
For Vehicles with Production Date from 02/09 with 6 Bolt Crank

Brand:
XClutch - Corporate Logo
ES#:
4765837
Mfg#:
XKBM24564-1A
Back Ordered
$1387.99 USD
Free Shipping

N54 Performance Silicone Radiator Hoses

ES#4690094 - 008640LA01 - N54 Performance Silicone Radiator Hoses - Upper and lower radiator silicone coolant hose kit to upgrade from your stock rubber hoses. Includes stainless steel hose clamps. Made to re-use your factory connections. - ECS - BMW

Upper and lower radiator silicone coolant hose kit to upgrade from your stock rubber hoses. Includes stainless steel hose clamps. Made to re-use your factory connections. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4690094
Mfg#:
008640LA01
In Stock
ON SALE! SAVE 25%
$121.99

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

$91.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Polyurethane Rear Subframe Bushing Set - Anti-squat - Front Position

ES#2778138 - PFR5-1220x2 - Performance Polyurethane Rear Subframe Bushing Set - Anti-squat - Front Position - A more planted subframe means a more planted rear end and better handling - Powerflex - BMW

A more planted subframe means a more planted rear end and better handling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This is an M specification bushing and is an upgrade for your vehicle

Brand:
Powerflex - Corporate Logo
ES#:
2778138
Mfg#:
PFR5-1220X2
In Stock
$224.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N55 Stage 1 Turbo Upgrade

ES#3449449 - N55-STG1 - N55 Stage 1 Turbo Upgrade - Upgraded internals in a new stock housing! Supports up to 425 horsepower at the wheels! - Vargas Turbo Technologies - BMW

Upgraded internals in a new stock housing! Supports up to 425 horsepower at the wheels! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
3449449
Mfg#:
N55-STG1
Ships in 10 Business Days
ON SALE!
Starting at $0.00 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BR Series Coilover Suspension Kit - Extreme Low

ES#3639815 - I-11E-BR - BR Series Coilover Suspension Kit - Extreme Low - Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors! - BC Racing - BMW

Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
BC Racing - Corporate Logo
ES#:
3639815
Mfg#:
I-11E-BR
Ships on Aug 25, 2026
$1345.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Super Sport Spring Set

ES#248751 - 50487-77 - Super Sport Spring Set - For the seasoned enthusiast looking to go even lower - H&R - BMW

For the seasoned enthusiast looking to go even lower affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
248751
Mfg#:
50487-77
Ships in 4 Business Days
15% off MSRP

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

$389.00

This product was last offered at the strikethrough price on
07-01-2026

$330.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Valve Set - Sodium Filled - Std Size

ES#4716076 - bmevi-1054s-hsKT - Exhaust Valve Set - Sodium Filled - Std Size - Inconel-Nimonic / Sodium Filled, Std 28mm, set of 12. - Supertech - BMW

Inconel-Nimonic / Sodium Filled, Std 28mm, set of 12. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supertech - Corporate Logo
ES#:
4716076
Mfg#:
BMEVI-1054S-HSKT
Ships on Aug 3, 2026
Auto Notify
$660.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Phoenix Racing Performance Intercooler

ES#3603596 - BMS-E-N5455-INTC - Phoenix Racing Performance Intercooler - Upgrade your intercooler for lower intake temperatures and better performance! - Burger Motorsports - BMW

Upgrade your intercooler for lower intake temperatures and better performance! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Burger Motorsports - Corporate Logo
ES#:
3603596
Mfg#:
BMS-E-N5455-INTC
Ships on Jul 22, 2026
$329.00 USD
This product is lifetime replacement eligible Lifetime Replacement

B58 Ignition Coil Upgrade Adapter Kit - N54

Kit with Ignition Coils affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Nexsys Motorsport - Corporate Logo
ES#:
4500218
Mfg#:
B58COILPNPN54
Ships on Sep 4, 2026
ON SALE!
Starting at $506.93 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Cat back exhaust - black tips

ES#2827642 - SSXBM948 - Performance Cat back exhaust - black tips - Motorsport pedigree. Superior quality. Excellent sound. Milltek Sport cat-back exhaust for enhanced performance. - Milltek Sport - BMW

Motorsport pedigree. Superior quality. Excellent sound. Milltek Sport cat-back exhaust for enhanced performance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
2827642
Mfg#:
SSXBM948
Ships in 4 Business Days
ON SALE! SAVE 10%
$1456.00

This product was last offered at the strikethrough price on
07-01-2026

$1310.40 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Std. Size

Brand:
MANLEY - Corporate Logo
ES#:
4685604
Mfg#:
647000CE-6
Ships on Jul 22, 2026
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
07-05-2026

$1309.99 USD
Free Shipping
on orders $49 and up

N54B30 32cc Platinum Series Dish Extreme Duty Piston Set - 84.5mm Bore

ES#4685591 - 646005CE-6 - N54B30 32cc Platinum Series Dish Extreme Duty Piston Set - 84.5mm Bore - Upgrade to Manley's Platinum Series Extreme Duty Pistons for increased performance! Stock 10.2:1 Compression Ratio - MANLEY - BMW

Upgrade to Manley's Platinum Series Extreme Duty Pistons for increased performance! Stock 10.2:1 Compression Ratio affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
.50mm Oversize

Brand:
MANLEY - Corporate Logo
ES#:
4685591
Mfg#:
646005CE-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
07-05-2026

$1309.99 USD
Free Shipping
on orders $49 and up

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.

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.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings