I just bought an rtek stage 2. I'm not experienced with Rtek's though. I found out after the fact that it was set up for an s5 rx7 instead of an s4 (which I have). Will it work? If so will it be plug and play or will I have to do some rewiring? Thanks in advance.

 

s5 ecu has completely different set of connectors then the S4....you would have to replace the engine harness with an s5 one...don't think it's worth it to do that.

 

Would you ever willing to sell that 2.1 setup?

 

i plan on de pinning an s5 ecu, and wiring it to a s4 plug, right at the ecu, lots of cutting and soldering, but i think i can make it work.