2015 Mercedes Benz GLA45 AMG Renntech ECU with Renntech Downpipe.

RENNtech ECU Upgrade for the M133 - 45 AMG Engine and the 117 - CLA, 176 - A and 156 - GLA. Gains: +50HP & 52lb-ft LB-FT

RENNtech Stainless Steel Exhaust Downpipe for M133 - 45 AMG Engines. Fits 176 - A 45 AMG, 117 - CLA 45 AMG and 156 - GLA 45 AMG.
Gains: +10HP & +10TQ.

I took these items off my car before I gave my car back to the dealer. The car transforms into a rocket with them on! Unbelievable response and acceleration. The sound with this downpipe is amazing as well. It’s the perfect upgrade, its a must have. It was so much fun to drive.
Listed at $4,850.00 directly from Renntech.