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The G8x M3/M4 offers improvements in various areas compared to its predecessor, but some enthusiasts are concerned about its sound quality. MAD addresses this with a valved axle-back exhaust system, enhancing the car's sound with a deeper, more impactful note. This system, when combined with the optional single midpipe, produces an even louder, smoother, and fuller sound.
To achieve the desired sound, we increased the tubing size to 76mm, reducing backpressure for improved flow. The exhaust system's design allows for noise reduction when valves are closed and maximum enjoyment with open valves during high-load conditions. This balance caters to a range of preferences.
MAD's G8x M3/M4 exhaust is crafted from high-quality stainless steel, TIG welded for superior appearance, and brush-finished for a polished look. The quad 4.5-inch exhaust tips seamlessly integrate into the factory cut-outs, offering an OEM+ appearance with added attitude.
Features:
Connects to Factory Midpipe (Cutting required) or MAD Single Midpipe (No Cutting required)
Maximum gains of +17 HP and 15 lb-ft of torque Full Exhaust (Muffler only +5 whp + 5 wtq)
