Kicking off the week with a Stunning BMW M4 in for a bit of an attitude adjustment This Bavarian beast in for an SG Performance Stainless steel Downpipes and ECU remap

We equipped this beast with an in house SG Performance Stainless steel Downpipe and custom SG Performance ECU Remap. The build was tested on a Dyno, letting us fine tune the Vehicles ECU mapping to peak performance.