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

BMW Underbody Braces & Reinforcements

Sort By
Filter By
Return to Top

E30 Frame Rail Reinforcement Kit

ES#4487673 - 043107LA01 - E30 Frame Rail Reinforcement Kit - Say goodbye to crusty & rusty subframes! The industry standard in weld-in E30 frame rail reinforcement. - Turner Motorsport - BMW

Say goodbye to crusty & rusty subframes! The industry standard in weld-in E30 frame rail reinforcement. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4487673
Mfg#:
043107LA01
In Stock
ON SALE! SAVE 40%
$190.99

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

$114.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Chassis Bracing for F8X M2/M3/M4

ES#4375773 - F-Brace - Chassis Bracing for F8X M2/M3/M4 - Chassis Bracing for F8X M2/M3/M4 - Active Autowerke - BMW

Chassis Bracing for F8X M2/M3/M4 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Active Autowerke - Corporate Logo
ES#:
4375773
Mfg#:
F-BRACE
Ships in 2 Business Days
$99.00

This product was last offered at the strikethrough price on
02-23-2026

$94.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E36 X Brace

ES#4429850 - K0708 - E36 X Brace - Garagistic Front Subframe Cross-Brace - Garagistic - BMW

Garagistic Front Subframe Cross-Brace affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Garagistic - Corporate Logo
ES#:
4429850
Mfg#:
K0708
In Stock
ON SALE!
$265.00

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

$257.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Active Autowerke Chassis Brace - G2X M340i/M440i

Replaces the OEM underbody brace with a new unit that increases clearance, allowing for larger exhaust systems without sacrificing rigidity. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Active Autowerke - Corporate Logo
ES#:
5435799
Mfg#:
11-129
Ships in 4 Business Days
$332.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

"G-Brace" Chassis Brace

ES#4752483 - AAG8XGBRACE - "G-Brace" Chassis Brace - Replaces the OEM underbody brace with a new unit that increases clearance, allowing for larger exhaust systems without sacrificing rigidity. - Active Autowerke - BMW

Replaces the OEM underbody brace with a new unit that increases clearance, allowing for larger exhaust systems without sacrificing rigidity. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Active Autowerke - Corporate Logo
ES#:
4752483
Mfg#:
AAG8XGBRACE
Ships in 4 Business Days
5% off MSRP

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

$299.00

This product was last offered at the strikethrough price on
06-02-2026

$284.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Track Tec Chassis Brace - F8X

ES#4405550 - F8XChassisBrace - Track Tec Chassis Brace - F8X - Increase chassis rigidity with this Standard Brace for your Stock Exhaust System! - Track Tec - BMW

Increase chassis rigidity with this Standard Brace for your Stock Exhaust System! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Stock Exhaust System

Brand:
Track Tec
ES#:
4405550
Mfg#:
F8XCHASSISBRACE
In Stock
ON SALE! SAVE 12%
$290.00

This product was last offered at the strikethrough price on
05-14-2026

$254.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E30 X Brace

ES#4429848 - K0707 - E30 X Brace - Garagistic Front Subframe Cross-Brace - Garagistic - BMW

Garagistic Front Subframe Cross-Brace affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Garagistic - Corporate Logo
ES#:
4429848
Mfg#:
K0707
In Stock
ON SALE!
$265.00

This product was last offered at the strikethrough price on
05-14-2026

$254.11 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fillster Head Screw - Priced Each

ES#2744450 - 07147162464 - Fillster Head Screw - Priced Each - M10X30-Z1 - Genuine BMW - BMW MINI

M10X30-Z1 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2744450
Mfg#:
07147162464
Ships in 1-2 days
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Active Autowerke "G-Brace" Chassis Brace - G87 M2

Replaces the OEM underbody brace with a new unit that increases clearance, allowing for larger exhaust systems without sacrificing rigidity. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Active Autowerke - Corporate Logo
ES#:
5435797
Mfg#:
11-120
Ships in 4 Business Days
$284.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Other BMW Underbody Braces & Reinforcements

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