i am running on 1600cc NA with BOT. my exhaust setup is 2.5" downpipe + mid box +2" straight pipe + straight flow muffle. Due to tak boleh tahan with the loud exhaust, i added another mid box.
Recently installed SAFC in Wira 4G93 engine, but CheckEngine light turns on. RPM indicated only about half of the actual RPM meter reading, and no effect in A/F setting. Plug the whole SAFC to another car with 4G93...