2020 Mercedes Benz SLC300 Base Convertible 172.438 L4 2.0L Performance ECU Software / Tuning

Sort By

In Stock On Sale Kits

Weistec Mercedes-Benz M274 W.1 ECU Tune

Increase of +7 Horsepower, and +22 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! This software is only compatible with Windows PC / Laptop.

Brand:
ES#:: 4708069
Mfg#:: 05-274-00053-6KT

Qty: Availability:

Ships in 1 Business Day

ON SALE! SAVE 15%

$999.00

This product was last offered at the strikethrough price on
09-01-2026

$849.15 USD

Free Shipping

on orders $49 and up

Partial Replacement

Weistec Mercedes-Benz M274 W.2 ECU Tune

Increase of +15 Horsepower, and +45 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters! This software is only compatible with Windows PC / Laptop.

Brand:
ES#:: 4708070
Mfg#:: 05-274-00054-7KT