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Your Vehicle 2018 Mercedes Benz GLS63 AMG Base Sport Utility 166.875 V8 5.5L

2018 Mercedes Benz GLS63 AMG Base Sport Utility 166.875 V8 5.5L Performance Parts & Upgrades

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ES#3644468 - 849454 - Mercedes W166 Superspinrt Rear Muffler System  - 100% Stainless Steel, Made In Italy! Tips not included - Supersprint - Mercedes Benz

100% Stainless Steel, Made In Italy! Tips not included affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supersprint - Corporate Logo
ES#:
3644468
Mfg#:
849454
Ships on Sep 15, 2026
$2953.99 USD
Free Shipping
ES#4707944 - 01-157-00252-3KT - Weistec Mercedes-Benz AMG M157 W.1 ECU Tune  - Increase of +166 Horsepower, and +246 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! - Weistec - Mercedes Benz

Increase of +166 Horsepower, and +246 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This software is only compatible with Windows PC / Laptop.

Brand:
Weistec - Corporate Logo
ES#:
4707944
Mfg#:
01-157-00252-3KT
Ships in 1 Business Day
$2299.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4707945 - 05-157-00034-5KT - Weistec Mercedes-Benz AMG M157 W.2 ECU Tune  - Increase of +211 Horsepower, and +321 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters! - Weistec - Mercedes Benz

Increase of +211 Horsepower, and +321 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This software is only compatible with Windows PC / Laptop.

Brand:
Weistec - Corporate Logo
ES#:
4707945
Mfg#:
05-157-00034-5KT
Ships in 1 Business Day
$2499.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Eliminate fueling bottlenecks on your M157 with an upgraded FX-200 high-pressure fuel pump system designed to effortlessly handle big power and full E85. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Spool Performance - Corporate Logo
ES#:
5446632
Mfg#:
SP-FX0320-M157
Special Order: No Guaranteed ETA
8% off MSRP

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

$5999.00

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

$5499.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Setup up your exhaust system just the way you like it with this kit from Supersprint affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supersprint - Corporate Logo
ES#:
4365172
Mfg#:
BY0-166-TB-KT
Ships on Sep 15, 2026
Starting at $10257.97 USD

Stainless steel rear muffler affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supersprint - Corporate Logo
ES#:
3643870
Mfg#:
721334
Ships in 3 Business Days
$2052.00 USD
Free Shipping

Setup up your exhaust system just the way you like it with this kit from Supersprint affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supersprint - Corporate Logo
ES#:
4365169
Mfg#:
BY0-166-CB-KT
Ships on Sep 15, 2026
Starting at $4479.99 USD
ES#5456916 - 8187KT - CSF High Performance Radiator Kit - Set Of 3 - Upgrade your cooling and eliminate heat soak issues in your AMG! Kit includes left and right side radiator, and center CSF upgraded radiator with Zerex G40 Coolant! - CSF - Mercedes Benz

Upgrade your cooling and eliminate heat soak issues in your AMG! Kit includes left and right side radiator, and center CSF upgraded radiator with Zerex G40 Coolant! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CSF - Corporate Logo
ES#:
5456916
Mfg#:
8187KT
Back Ordered
$1876.99 USD
This product is lifetime replacement eligible Partial Replacement
ES#2855201 - SN0210 - Stage 2.5 Boost-Controlled Water/Meth Injection Kit - Features a gauge pod controller, which allows for the best control and visibility. 7-color OLED displays boost, percentage of flow, low level, and even faults. - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Features a gauge pod controller, which allows for the best control and visibility. 7-color OLED displays boost, percentage of flow, low level, and even faults. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Gauge Pod controller, for optimum control even from the driver's seat!

Brand:
SnowPerformance - Corporate Logo
ES#:
2855201
Mfg#:
SN0210
In Stock
$583.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2986535 - 006555ecs04a02KT - ECS UNIVERSAL Swivel Exhaust Tips - 3.5" Black Chrome - Pair - Stainless Steel exhaust tips featuring swivel attachments for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Stainless Steel exhaust tips featuring swivel attachments for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
ECS - Corporate Logo
ES#:
2986535
Mfg#:
006555ECS04A02KT
In Stock
ON SALE! SAVE 21%
$151.99

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

$119.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3458268 - 022798tms01-09KT - Complete Universal Turner Baffled Oil Catch Can Kit - 10oz - A 4 chamber, baffled oil catch can complete with a universal mount and drain system! - Turner Motorsport - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

A 4 chamber, baffled oil catch can complete with a universal mount and drain system! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3458268
Mfg#:
022798TMS01-09KT
In Stock
ON SALE! SAVE 15%
$299.99

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

$254.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3658972 - 020923ECS01 -  Build-Your-Own Universal Vacuum-Actuated Exhaust Cutout Kit - Single Cutout - Increase HP/TQ and activate a full race exhaust with the flip of a switch, with our ECS Vacuum-Actuated Exhaust Cutout - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Increase HP/TQ and activate a full race exhaust with the flip of a switch, with our ECS Vacuum-Actuated Exhaust Cutout affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3658972
Mfg#:
020923ECS01
In Stock
ON SALE!
Starting at $57.57 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2986534 - 006555ecs04a01KT - ECS UNIVERSAL Swivel Exhaust Tips - 3.5" Chrome - Pair - Stainless Steel exhaust tips featuring swivel attachments for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Stainless Steel exhaust tips featuring swivel attachments for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
ECS - Corporate Logo
ES#:
2986534
Mfg#:
006555ECS04A01KT
In Stock
ON SALE! SAVE 21%
$151.99

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

$119.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3499783 - 30-0300 - AEM X-Series Wideband UEGO AFR Sensor Controller Gauge - X-Digital Technology - 8.50:1 to 18:1 AFR Scale - AEM Electronics  - Audi BMW Volkswagen Mercedes Benz MINI Porsche

X-Digital Technology - 8.50:1 to 18:1 AFR Scale affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AEM Electronics  - Corporate Logo
ES#:
3499783
Mfg#:
30-0300
In Stock
$217.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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