Billet Water Injection Spacer for B58 BMWPlug and play water injection adapter for all B58 BMW motors Normally you'd replace the factory charge pipe to install a water meth kit but in the case of the B58 engine, the factory charge pipe is very sturdy and difficult to remove. So we've designed this plug and play adapter for quick installation and removal of BMS dual nozzle water meth kits without having to replace the factory charge pipe. Simply unscrew three bolts, insert the CNC machined