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BMW E88 135i N55 3.0L

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BMW E88 135i N55 3.0L Cup Kits

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Cup Kit/Coilover Installation Kit

ES#2622813 - 31306775098KT1 - Cup Kit/Coilover Installation Kit - Everything you need to install coilovers, shocks/struts, or a cup kit on your BMW - Assembled By ECS - BMW

Everything you need to install coilovers, shocks/struts, or a cup kit on your BMW 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#:
2622813
Mfg#:
31306775098KT1
Ships in 1-3 days
ON SALE!
$464.26 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B12 Pro-Kit Suspension System

ES#2649651 - 46-180537 - 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 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bilstein - Corporate Logo
ES#:
2649651
Mfg#:
46-180537
In Stock at Vendor
$999.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E8x E9x Spring Replacement Kit - Hardware And Mounts

ES#4752831 - e9xspringinstKT - E8x E9x Spring Replacement Kit - Hardware And Mounts - If you are replacing old springs to changing to lowering springs this kit has all the necessary replacement hardware as well as replacement mounts. Enthusiast kit put together for the best price and least hassle. - Assembled By ECS - BMW

If you are replacing old springs to changing to lowering springs this kit has all the necessary replacement hardware as well as replacement mounts. Enthusiast kit put together for the best price and least hassle. 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#:
4752831
Mfg#:
E9XSPRINGINSTKT
In Stock
ON SALE!
$338.99

This product was last offered at the strikethrough price on
04-06-2026

$328.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cup Kit - Eibach Springs With Koni Sport Shocks

ES#3188008 - 1145 1018 - Cup Kit - Eibach Springs With Koni Sport Shocks - Fine tune your suspension to suit your driving style! - Koni - BMW

Fine tune your suspension to suit your driving style! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our Spin To Win Sweepstakes!

Brand:
Koni - Corporate Logo
ES#:
3188008
Mfg#:
1145 1018
In Stock
ON SALE! SAVE 20%
$1455.99

This product was last offered at the strikethrough price on
06-22-2026

$1164.11 USD
Free Shipping

Cup Kit/Coilover Installation Kit

ES#2586384 - E9XCOILOVERINSKT - Cup Kit/Coilover Installation Kit - Everything you need to install coilovers, shocks/struts, or a cup kit including shock mounts - Genuine BMW - BMW

Everything you need to install coilovers, shocks/struts, or a cup kit including shock mounts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2586384
Mfg#:
E9XCOILOVERINSKT
Ships in 1 day
$891.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Touring Cup Kit

ES#248752 - 31054t-6 - Touring Cup Kit - Perfect combination of handling and ride quality. - H&R - BMW

Perfect combination of handling and ride quality. 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!

Brand:
H&R - Corporate Logo
ES#:
248752
Mfg#:
31054T-6
Ships in 3 Business Days
$850.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E9x Coilover/Spring Install Kit - Hardware Without Mounts

ES#4752833 - E9XCOILOVERISKT - E9x Coilover/Spring Install Kit - Hardware Without Mounts - The bare bones minimum hardware that should be replaced when swapping coil overs or suspension with pre-installed mounts. - Assembled By ECS - BMW

The bare bones minimum hardware that should be replaced when swapping coil overs or suspension with pre-installed mounts. 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#:
4752833
Mfg#:
E9XCOILOVERISKT
In Stock
$171.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sport Cup Kit

Perfect combination of handling and ride quality. 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!

Brand:
H&R - Corporate Logo
ES#:
248753
Mfg#:
31054-6
Back Ordered
$850.99 USD
Free Shipping
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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