Originally Posted by
Stephen_AUS
WOW this has started to turn into a big rant. Idk what more answers you need, as I have sent you heaps of PM's through ClubITR about this.
About the header, you can use the JDM EP3 4-2 header you have now, you will require a EP3/Aftermarket Sway as I have said a dozen of times. Besides that, it will bolt straight on with no hassles. If you want you can get a cat welded in and if its still too loud put a muffler on it (will change the tone, but normal when changing things). In the end ... if you still complaining about loud ... dont get a 70RR. Settle with the 60RS and find youself a Toda Header. Similar tones, but not as epic as 70RR.
This is your call, I am only suggesting ...