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

Audi S4 Rear Subframe Parts

Sort By
Filter By
Return to Top

Billet Aluminum Rear Subframe Mount Insert Kit

ES#3247809 - 034-601-0046 - Billet Aluminum Rear Subframe Mount Insert Kit - Maintain proper suspension geometry when cornering and reduce rear subframe movement - 034Motorsport - Audi

Maintain proper suspension geometry when cornering and reduce rear subframe movement

Brand:
034Motorsport - Corporate Logo
ES#:
3247809
Mfg#:
034-601-0046
Ships in 5 Business Days
ON SALE! SAVE 10%
$208.00

This product was last offered at the strikethrough price on
06-28-2026

$187.20 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Rear Subframe Mount Insert Kit

ES#3168418 - 034-601-0035 - Billet Aluminum Rear Subframe Mount Insert Kit - Tighten your ride back up with this billet insert kit from 034 Motorsports - 034Motorsport - Audi

Tighten your ride back up with this billet insert kit from 034 Motorsports

Brand:
034Motorsport - Corporate Logo
ES#:
3168418
Mfg#:
034-601-0035
Back Ordered
Auto Notify
ON SALE! SAVE 10%
$168.00

This product was last offered at the strikethrough price on
06-28-2026

$151.20 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Lightweight Tubular Rear Subframe

ES#4701691 - WAS-501 - Lightweight Tubular Rear Subframe - Increases chassis rigidity for improved handling performance and eliminates subframe shifting - Verkline - Audi

Increases chassis rigidity for improved handling performance and eliminates subframe shifting

Brand:
Verkline - Corporate Logo
ES#:
4701691
Mfg#:
WAS-501
Ships in 10 Business Days
$1699.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Rear Subframe Bushing Kit

ES#3178069 - 034-601-0011 - Billet Rear Subframe Bushing Kit - Maintain proper suspension geometry when cornering and reduce rear subframe movement - 034Motorsport - Audi

Maintain proper suspension geometry when cornering and reduce rear subframe movement

Brand:
034Motorsport - Corporate Logo
ES#:
3178069
Mfg#:
034-601-0011
Ships in 2 Business Days
ON SALE! SAVE 10%
$285.00

This product was last offered at the strikethrough price on
06-28-2026

$256.50 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Rear Crossmember / Differential Carrier - Street Density

ES#3432222 - 034-505-1000-SD - Billet Rear Crossmember / Differential Carrier - Street Density - Prevents failure of the factory cast aluminum piece - A must-have for drag/road racing - 034Motorsport - Audi

Prevents failure of the factory cast aluminum piece - A must-have for drag/road racing

Brand:
034Motorsport - Corporate Logo
ES#:
3432222
Mfg#:
034-505-1000-SD
Ships in 2 Business Days
ON SALE! SAVE 10%
$441.00

This product was last offered at the strikethrough price on
06-28-2026

$396.90 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - Priced Each

ES#2707374 - WHT004756A - Hex Bolt - Priced Each - Install new hardware with your new parts. M12x1.5x145x90 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. M12x1.5x145x90 Secures the rear subframe to the vehicle

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2707374
Mfg#:
WHT004756A
In Stock
3% off MSRP

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

$28.18

This product was last offered at the strikethrough price on
07-19-2026

$27.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo Rear Subframe Insert Set

ES#5435532 - HW-561 - CTS Turbo Rear Subframe Insert Set - Lock down your B9 Audi's chassis and eliminate rear subframe flex with CTS Turbos billet aluminum insert set, delivering sharper handling and instant power transfer with minimal NVH. - CTS - Audi

Lock down your B9 Audi's chassis and eliminate rear subframe flex with CTS Turbo’s billet aluminum insert set, delivering sharper handling and instant power transfer with minimal NVH.

Brand:
CTS - Corporate Logo
ES#:
5435532
Mfg#:
HW-561
Ships in 7 Business Days
$149.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Handling Packages

ES#4877160 - 034-4ZZ-0020 - 034Motorsport Handling Packages - Staged handling upgrades to best optimize the handling performance of the Audi S4 or S5! - 034Motorsport - Audi

Staged handling upgrades to best optimize the handling performance of the Audi S4 or S5!

Brand:
034Motorsport - Corporate Logo
ES#:
4877160
Mfg#:
034-4ZZ-0020
Ships in 2 Business Days
ON SALE!
Starting at $856.80 USD
Customize
Free Shipping
on orders $49 and up

Hex Bolt - Priced Each

ES#471422 - N90981302 - Hex Bolt - Priced Each - Install new hardware with your new parts. 12x1.5x130x100 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. 12x1.5x130x100

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
471422
Mfg#:
N90981302
Ships in 1-2 days
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Rear Subframe Bushing Kit

ES#2864607 - 034-601-0005 - Billet Rear Subframe Bushing Kit - Maintain proper suspension geometry when cornering and reduce rear subframe movement - 034Motorsport - Audi

Maintain proper suspension geometry when cornering and reduce rear subframe movement

Brand:
034Motorsport - Corporate Logo
ES#:
2864607
Mfg#:
034-601-0005
Ships in 2 Business Days
ON SALE! SAVE 10%
$274.00

This product was last offered at the strikethrough price on
06-28-2026

$246.60 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Polyurethane Rear Subframe Bushings - Set of Four

ES#4701651 - POW-078 - Polyurethane Rear Subframe Bushings - Set of Four - Offers more precise feel and quicker reactions to steering input while eliminating unwanted suspension movement - Verkline - Audi

Offers more precise feel and quicker reactions to steering input while eliminating unwanted suspension movement

Brand:
Verkline - Corporate Logo
ES#:
4701651
Mfg#:
POW-078
Ships in 2 Business Days
$239.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Rear Subframe Bushings - Set of Four

ES#4701666 - SBK-015 - Aluminum Rear Subframe Bushings - Set of Four - Eliminate movement of the factory rear subframe and maintain proper suspension geometry when cornering! - Verkline - Audi

Eliminate movement of the factory rear subframe and maintain proper suspension geometry when cornering!

Brand:
Verkline - Corporate Logo
ES#:
4701666
Mfg#:
SBK-015
Ships in 4 Business Days
$199.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Self-Locking Nut - Priced Each

ES#6665 - N10209005 - Self-Locking Nut - Priced Each - Install new hardware with your new parts. M10x1.5 - Febi - Audi Volkswagen

Install new hardware with your new parts. M10x1.5 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Secures the cross member to the rear subframe

Brand:
Febi - Corporate Logo
ES#:
6665
Mfg#:
N10209005
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Subframe Bushing - Rear Position - Priced Each

ES#2892236 - 8E0505145AP - Rear Subframe Bushing - Rear Position - Priced Each - Fits the left and right side - Vaico - Audi

Fits the left and right side We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2892236
Mfg#:
8E0505145AP
In Stock at Vendor
$61.99

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

$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Rear Subframe Bushings - Set of Four

ES#4701661 - SBK-005 - Aluminum Rear Subframe Bushings - Set of Four - Eliminate movement of the factory rear subframe and maintain proper suspension geometry when cornering! - Verkline - Audi

Eliminate movement of the factory rear subframe and maintain proper suspension geometry when cornering!

Brand:
Verkline - Corporate Logo
ES#:
4701661
Mfg#:
SBK-005
Ships in 10 Business Days
$199.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo Rear Subframe Insert Set

ES#5435531 - HW-559 - CTS Turbo Rear Subframe Insert Set - Lock down the rear end of your B8 S4, S5, Q5, or SQ5 and eliminate subframe deflection with CTS Turbos billet aluminum insert set, delivering sharper handling and direct power transfer with minimal NVH. - CTS - Audi

Lock down the rear end of your B8 S4, S5, Q5, or SQ5 and eliminate subframe deflection with CTS Turbo’s billet aluminum insert set, delivering sharper handling and direct power transfer with minimal NVH.

Brand:
CTS - Corporate Logo
ES#:
5435531
Mfg#:
HW-559
Ships in 7 Business Days
$149.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Let us help you find the parts that fit your Audi

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