The 4 cylinder A45 AMG is a fierce pit bull when compared with others on the WRC market. The 375hp 4cyl. motor packs a powerful punch when paired with a custom tune by SMS! Yours is sure to be a knock out after we get done with it!
This ECU tune can make your already impressive A45 into a literal beast.
Our expert team of technicians have vast knowledge working on the A45 family of engines. We have calibrated many of factory ECU settings giving your A45 higher performance while still remaining daily drivable & street legal.
SMS offers stage one stage two and stage three tunes for this vehicle. Please contact your local SMS location for further details!