If you seek maximum fuel system performance, the CJM S2-SE can take you there. Every inch of plumbing is upgraded, and the fuel pump module is heavily modified with our Level 2 fuel pump return hardware kit. This is the only fuel system available for the 370z that can support a Walbro 400 series fuel pump and it includes the external filter required when doing so.
The included Level 2 fuel pump modification kit deletes the factory filter and reverses flow through the module to return from the original outlet. A new output is created with a -6AN directly on the top of the module. This system is a great candidate for E85 cars which demand higher fuel system performance.
By deleting the internal filter, available module displacement is increased for improved surge protection under full throttle. The large plumbing eliminates pressure drop in the fuel system, allowing for outright maximum fuel pump performance. This system is ready to go for 800+ HP, just add injectors and fuel pump.
Constructed with the possible future in mind, the S2-SE plumbing is already adequately sized for adding a twin fuel pump module.