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BMW E46 323i M52 2.5L

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BMW E46 323i M52 2.5L Suspension Parts & Accessories

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Rear Shock Mount Reinforcement - Priced each

ES#3673835 - B3300044 - Rear Shock Mount Reinforcement - Priced each - Mounts on the top of the rear shock mount, creating a much stiffer mounting point. - Bavarian Autosport - BMW

Mounts on the top of the rear shock mount, creating a much stiffer mounting point. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bavarian Autosport - Corporate Logo
ES#:
3673835
Mfg#:
B3300044
In Stock
ON SALE!
$8.99

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

$8.68 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 ZHP Suspension Upgrade Kit

ES#4745299 - 33500429577KT - E46 ZHP Suspension Upgrade Kit - Give your suspension a refreshing upgrade with this ZHP kit. Featuring Koni STR.T shocks and struts - Assembled By ECS - BMW

Give your suspension a refreshing upgrade with this ZHP kit. Featuring Koni STR.T shocks and struts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4745299
Mfg#:
33500429577KT
Ships in 5 Business Days
$1500.99 USD
This product is lifetime replacement eligible Lifetime Replacement

RM Series Coilover Suspension Kit

The RM coilovers offer the majority of the features of the BR series but with the additional benefit of the inverted damper unit. Inverting the damper unit brings with it a number of advantages. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For coupe and sedan models only

Brand:
BC Racing - Corporate Logo
ES#:
4430611
Mfg#:
I-02-RM
Back Ordered
$1495.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sport Spring Set

ES#10812 - 29419 - Sport Spring Set - Average lowering of 1.3"F 1.2"R - H&R - BMW

Average lowering of 1.3"F 1.2"R 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!
For touring models only

Brand:
H&R - Corporate Logo
ES#:
10812
Mfg#:
29419
In Stock
$245.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B8 Performance Plus Shock Absorber - Pair

ES#2771073 - be3-2698KT - B8 Performance Plus Shock Absorber - Pair - Compliments factory sport package or lowering springs with a remarkably comfortable sport ride. World-famous Bilstein quality with a limited lifetime warranty! - Bilstein - BMW

Compliments factory sport package or lowering springs with a remarkably comfortable sport ride. World-famous Bilstein quality with a limited lifetime warranty! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Bilstein - Corporate Logo
ES#:
2771073
Mfg#:
BE3-2698KT
In Stock
$294.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Self Locking Nut - Priced Each

ES#15873 - 07129900047 - Self Locking Nut - Priced Each - M12X1.5 - Genuine BMW - BMW

M12X1.5 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
15873
Mfg#:
07129900047
In Stock
$3.35

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

$3.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Suspension Shim - Priced Each

ES#49751 - 31306779671 - Front Suspension Shim - Priced Each - Allows you to raise the front of your vehicle 20mm without sacrificing handling or suspension performance - Genuine BMW - BMW

Allows you to raise the front of your vehicle 20mm without sacrificing handling or suspension performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
49751
Mfg#:
31306779671
In Stock
1% off MSRP

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

$66.99

This product was last offered at the strikethrough price on
06-11-2026

$65.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Race Spring Set

ES#10800 - 50484-88 - Race Spring Set - Lowers your vehicles while providing a stiffer ride, Average lowering of 1.1"F 0.9"R - H&R - BMW

Lowers your vehicles while providing a stiffer ride, Average lowering of 1.1"F 0.9"R 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!
For sedan models with sport suspension

Brand:
H&R - Corporate Logo
ES#:
10800
Mfg#:
50484-88
In Stock
$286.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Upper Spring Pad - 5mm

ES#2678633 - 33531136385 - Rear Upper Spring Pad - 5mm - Isolates the body from the rear coil spring - thinner for lower ride height - URO - BMW

Isolates the body from the rear coil spring - thinner for lower ride height affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2678633
Mfg#:
33531136385
In Stock
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 ST XA Performance Coilover System - Height And Rebound Adjustable - E46

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#:
4148228
Mfg#:
18220022
Ships in 4 Business Days
$1399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KONI 1145 Sport Suspension Kit

ES#3022834 - 11451011 - KONI 1145 Sport Suspension Kit - Upgrade your factory suspension to a sport tuned setup - Koni - BMW

Upgrade your factory suspension to a sport tuned setup affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Koni - Corporate Logo
ES#:
3022834
Mfg#:
11451011
In Stock
38% off MSRP

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

$2249.00

This product was last offered at the strikethrough price on
06-11-2026

$1394.38 USD
This product is lifetime replacement eligible Lifetime Replacement

Rear Bumpstop With Guard Tube - Priced Each

ES#2584053 - 33502290348 - Rear Bumpstop With Guard Tube - Priced Each - Protects damper from premature failure - Genuine BMW - BMW

Protects damper from premature failure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with sport suspension

Brand:
Genuine BMW - Corporate Logo
ES#:
2584053
Mfg#:
33502290348
In Stock
1% off MSRP

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

$29.74

This product was last offered at the strikethrough price on
06-11-2026

$29.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Shock Mount - Priced Each

ES#2749111 - 33526779670 - Rear Shock Mount - Priced Each - Two required per vehicle - Lemforder - BMW

Two required per vehicle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Upgrade for touring, sedan and non-M coupe models

Brand:
Lemforder - Corporate Logo
ES#:
2749111
Mfg#:
33526779670
Ships on Jun 30, 2026
Auto Notify
$19.99

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

$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BR Series Coilover Suspension Kit - Extreme Low

ES#3639808 - I-02E-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
For coupe and sedan models only

Brand:
BC Racing - Corporate Logo
ES#:
3639808
Mfg#:
I-02E-BR
Ships on Aug 3, 2026
$1345.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front And Rear Suspension Refresh Kit - Level 3

ES#2219706 - E463112-LVL3 - Front And Rear Suspension Refresh Kit - Level 3 - Complete front and rear suspension rebuild kit - with high quality aftermarket components - Assembled By ECS - BMW

Complete front and rear suspension rebuild kit - with high quality aftermarket components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Includes front shock tower reinforcement plates, heavy duty ECS shock mount reinforcement plates and ECS rear trailing arm bushing limiters for extended bushing life and improved performance

Brand:
Assembled By ECS - Corporate Logo
ES#:
2219706
Mfg#:
E463112-LVL3
Ships in 8 Business Days
ON SALE! SAVE 10%
$1484.99

This product was last offered at the strikethrough price on
05-01-2026

$1341.83 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Lower Spring Pad - Priced Each

ES#3187739 - 33531094518 - Rear Lower Spring Pad - Priced Each - Replacement spring isolator for the rear spring - URO - BMW

Replacement spring isolator for the rear spring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3187739
Mfg#:
33531094518
In Stock
$8.85 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Suspension Parts & Accessories

A good suspension holds you up, while keeping your tires safely planted on the road surface for good traction, braking, and handling. Even if you don't know jounce from rebound, we can help you choose suspension parts, accessories, and upgrades to match your car, driving style, and budget.

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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