When I installed my AGP WGA I used the green line mod, and the edtip mod. Every now and then I would get crappy idle and shitty first gear launches. Then I would turn off the engine, turn it back on and it would run fine again. Check engine light never came on. Now that I have stage1 and waiting on stage 2, did I need to keep the Green line mod and the edtip mod, or is it okay to go back to the factory configuration with the black line with the s1 or s2.