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

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
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Mercedes Benz C300 Performance Parts & Upgrades

Sort By
Filter By
Return to Top

DRA Series Wheel Spacers - 30mm (1 Pair)

ES#378 - 60556651 - DRA Series Wheel Spacers - 30mm (1 Pair) - H&R 30 mm spacers attach with supplied bolts, uses existing bolts to attach wheel to spacers. Bolts to the hub - H&R - Audi Mercedes Benz Porsche

H&R 30 mm spacers attach with supplied bolts, uses existing bolts to attach wheel to spacers. Bolts to the hub We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
378
Mfg#:
60556651
Ships in 3 Business Days
10% off MSRP

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

$229.99

This product was last offered at the strikethrough price on
10-01-2026

$206.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Adjustable Coilover System - W204 RWD

ES#4901420 - 057537LA01 - ECS Performance Adjustable Coilover System - W204 RWD - Transform your C-Class with the ultimate blend of performance, comfort, and style! Featuring variable length shock bodies, adjustable sway bar end links, and 32-way adjustable damping for total suspension control. - ECS - Mercedes Benz

Transform your C-Class with the ultimate blend of performance, comfort, and style! Featuring variable length shock bodies, adjustable sway bar end links, and 32-way adjustable damping for total suspension control. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4901420
Mfg#:
057537LA01
In Stock
ON SALE! SAVE 20%
$1179.99

This product was last offered at the strikethrough price on
08-14-2026

$943.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

DRA Series Wheel Spacers - 25mm (1 Pair)

ES#348 - 50556651 - DRA Series Wheel Spacers - 25mm (1 Pair) - Want to add some stance to your car with those new wheels? Get these new spacers today - H&R - Audi Mercedes Benz Porsche

Want to add some stance to your car with those new wheels? Get these new spacers today We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
348
Mfg#:
50556651
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.

$189.99

This product was last offered at the strikethrough price on
10-01-2026

$170.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Super Sport Spring Set

ES#1303818 - 52794-77 - Super Sport Spring Set - Lowers your vehicle for an aggressive stance - H&R - Mercedes Benz

Lowers your vehicle for an aggressive stance We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
1303818
Mfg#:
52794-77
In Stock
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
10-01-2026

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

Weistec Mercedes-Benz M276 DE 35 NA W.2 ECU Tune

ES#4732924 - 05-276-00216-9KT - Weistec Mercedes-Benz M276 DE 35 NA W.2 ECU Tune - Increase of +38 Horsepower, and +32 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance high-flow exhausts! - Weistec - Mercedes Benz

Increase of +38 Horsepower, and +32 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance high-flow exhausts!

Brand:
Weistec - Corporate Logo
ES#:
4732924
Mfg#:
05-276-00216-9KT
In Stock at Vendor
$1399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Weistec Mercedes-Benz M276 DE 35 NA W.1 ECU Tune

ES#4732923 - 05-276-00215-8KT - Weistec Mercedes-Benz M276 DE 35 NA W.1 ECU Tune - Increase of +29 Horsepower, and +23 Torque, Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! - Weistec - Mercedes Benz

Increase of +29 Horsepower, and +23 Torque, Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!

Brand:
Weistec - Corporate Logo
ES#:
4732923
Mfg#:
05-276-00215-8KT
In Stock at Vendor
$1299.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Bilstein B12 Pro-Kit Suspension System

ES#4029229 - 46-266347 - Bilstein B12 Pro-Kit Suspension System - Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty! - Bilstein - Mercedes Benz

Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty! 10X Entries Into Our F80 M3 Sweepstakes
2X Entries For Our Spin To Win Sweepstakes!

Brand:
Bilstein - Corporate Logo
ES#:
4029229
Mfg#:
46-266347
Special Order: No Guaranteed ETA
$1209.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BR Series Coilover Suspension Kit - W204 RWD Coupe/Sedan

ES#3559715 - J-02-BR - BR Series Coilover Suspension Kit - W204 RWD Coupe/Sedan - 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 - Mercedes Benz

Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors!

Brand:
BC Racing - Corporate Logo
ES#:
3559715
Mfg#:
J-02-BR
Ships in 5 Business Days
$1195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Burger Motorsports JB4 Tuner - 2019+ C300

ES#5471005 - JB4-W205-SENT - Burger Motorsports JB4 Tuner - 2019+ C300 - Features CAN-Bus connectivity for more advanced tuning increases turbocharger output by 3-6psi producing significant power and torque gains. Includes JB4 Pro Wireless Connection. - Burger Motorsports - Mercedes Benz

Features CAN-Bus connectivity for more advanced tuning — increases turbocharger output by 3-6psi producing significant power and torque gains. Includes JB4 Pro Wireless Connection.

Brand:
Burger Motorsports - Corporate Logo
ES#:
5471005
Mfg#:
JB4-W205-SENT
Ships on Nov 18, 2026
12% off MSRP

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

$659.00

This product was last offered at the strikethrough price on
11-02-2026

$579.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bilstein B12 Pro-Kit Suspension System

ES#2983722 - 46-180766 - Bilstein B12 Pro-Kit Suspension System - Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty! - Bilstein - Mercedes Benz

Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty! 10X Entries Into Our F80 M3 Sweepstakes
For vehicles without electronically adjustable suspension (Option Code 483)

Brand:
Bilstein - Corporate Logo
ES#:
2983722
Mfg#:
46-180766
Special Order: No Guaranteed ETA
$1049.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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 Mercedes Benz

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 Your Privacy Choices Cookie Policy ECS Tuning is part of Enthusiast Auto Holdings