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BMW Z4 2.5i M54 2.5L

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BMW Z4 2.5i M54 2.5L Cup Kits

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Performance Suspension Cup Kit - Sport

ES#3659053 - 50421KT1 - Performance Suspension Cup Kit - Sport - Featuring Bilstein B8 shocks and H&R sport lowering springs - Assembled By ECS - BMW

Featuring Bilstein B8 shocks and H&R sport lowering springs 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#:
3659053
Mfg#:
50421KT1
Ships on Oct 23, 2026
$1189.99 USD
This product is lifetime replacement eligible Lifetime Replacement

B12 Pro-Kit Suspension System

ES#2983739 - 46-181237 - 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 - BMW

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

For vehicles without self leveling suspension

Brand:
Bilstein - Corporate Logo
ES#:
2983739
Mfg#:
46-181237
Special Order: No Guaranteed ETA
$1099.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cup Kit/Coilover Installation Kit - Without Spring Pads

ES#4315945 - 31336779613KT6 - Cup Kit/Coilover Installation Kit - Without Spring Pads - Everything you need to install coilovers, shocks/struts, or a cup kit on your BMW including HD rear shock mounts with reinforcement plates - Assembled By ECS - BMW

Everything you need to install coilovers, shocks/struts, or a cup kit on your BMW including HD rear shock mounts with reinforcement plates 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#:
4315945
Mfg#:
31336779613KT6
Ships on Jul 1, 2026
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ON SALE!
$285.86

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

$264.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Suspension Cup Kit - Sport

ES#3659051 - 50421KT - Performance Suspension Cup Kit - Sport - Featuring Koni Yellow shocks with H&R Springs - Assembled By ECS - BMW

Featuring Koni Yellow shocks with H&R Springs 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#:
3659051
Mfg#:
50421KT
In Stock at Vendor
$1349.99

This product was last offered at the strikethrough price on
03-22-2026

$1348.99 USD
This product is lifetime replacement eligible Lifetime Replacement

More About Cup Kits

More than a kit with matched components, a Cup Kit is a suspension lowering solution engineered for a specific make and model. Cup kits combine lowering and enhanced handling with ride comfort that's suitable for daily driving; all in a convenient, affordable package.

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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