Increase throttle response and decreases turbo lag with the VRSF Charge Pipe Upgrade for your F-chassis M2, M235i, 335i & 435i. Every VRSF Charge Pipe is constructed from mandrel bent, T6061 grade aluminum including the flanges. Each flange is precision machined from CNC billet aluminum, including the throttle body, intercooler and vacuum connections. After these are tig welded and hand finished, they’re tested on multiple jigs in order to ensure proper fitment and a reliable, leak free connection.