Ok, so Jic racing has the highest hp claims for the standard protege that I have come across- 10-15hp- and they have been doing mazda stuff in japan forever (well maybe not forever but you get my point) My question is this, is anyone using their full catback system, if so what is your feedback for performance and sound levels? It is a 60mm catback system (app 2.36inches) and does anyone think that just getting the muffler, going to my local shop and having them mandrel bend me a 60mm system with the jic tip would be as good????
