Made specifically for 2012-2017 M5/M6 F10/F12/F06 S63TU engine.   Project Gamma Downpipes for the M5 & M6 feature a CNC stainless steel v-band to pipe transition. These 3″ downpipes are the best bang for the buck mod available for your M5 and M6 with gains from 50 horsepower and 60 torque when tuned. Rather than necking down closer to the turbos like most of our competitors, our downpipes present a full 3D design up to the last inches proving a greater increase in flow. Project Gamma downpipes are handcrafted to extreme rust resistance using 304 Stainless Steel.  ******The product you see has been Ceramic Coated. To protect your engine bay from possible heat damage please purchase our Ceramic Coating add-on before checking out, otherwise your downpipes will just come polished.******* Features: - Major increases in power throughout the powerband - Improved turbo and throttle response - Elimination of turbo lag - Exotic exhaust note - Precise and proper fitment using factory heat shielding   Note: This product requires installation by a technician and will need tune recalibration to avoid cel light.