DeutschTuning proudly offers CTS Turbo S55 J-Pipe Throttle Body Pipe BMW M2C/M3/M4 2015-2021. Introducing the CTS TURBO J-Pipe forBMW F80, F82, F83 M3/M4 and F87 M2 COMPETITION (S55).The plastic OEM chargepipe is prone to failure at STOCK boost levels. CTS Turbo J-Pipe offers more air flow into the throttle body and a fully-welded solid design. OE fitment and peace of mind at any boost level. We added two meth bungs for those who are wanting to use water-methanol injection.Measuring at consistent 3" ID, this is the largest throttle body j-pipe on the market. You'll notice an increase in throttle response and a decrease in turbo lag. 3" J-pipe for uninterrupted flow. 3D CAD designed and flow tested. Billet CNC Aluminum Flange. T6061 Mandrel Bent Aluminium Pipe. Beautiful Black Powdercoat Finish with CTS logo. 4-ply silicon connector. Stainless Steel Clamps. Laser-etched CTS Turbo Logo. 2 Water Methanol Bungs (with plugs). New throttle body o-ring and installation hardware