Fabspeed BMW M3/M4 (G80/G82) Valvetronic Exhaust System (21+) (FS.BMW.G8X.VLVB) _TÜV The 3/4" union is machined

The 3/4" union is machined from aircraft grade 6061 aluminum for a light-weight and durable product

G37 or Q50 involved precision engineering and innovative problem solving - a STILLEN specialty

CARB EO# D-476-6

Outflows Factory Intake by 77%

We put in the time to test and prove that we have developed a superior kit for your Ford F-150

Fabspeed BMW M3/M4 (G80/G82) Valvetronic Exhaust System (21+) (FS.BMW.G8X.VLVB) _TÜV The 3/4" union is machinedThe Fabspeed BMW M3 & M4 Valvetronic Exhaust System offers a superb plug and play upgrade to the restrictive and quiet OEM exhaust. Adding a significant increase in tone, volume, and power. We use Helical valves imported directly from the U. K. to eliminate any risk of valve failure that plague many other options on the market with low quality exhaust valves. SOUND: The Fabspeed Motorsport Valvetronic Exhaust System relieves you of the subtle OEM