The VRSF aluminum J pipe upgrade for your M3/M4 replaces the weak plastic chargepipe that is prone to failing at and above OEM boost levels. Our aluminum chargepipe features precision CNC billet aluminum flanges...
Power gains of up to 80hp on a stock vehicle without the risks of flashing! Ready to take your F chassis N55 BMW to the next level? How about up to 60hp to the wheels...