2mm will make the different already. More air to go in to the air chamber and combusion room. That's why some bore it until 64 or 67mm... After market TB like Jun is 70mm at inner diameter. But bigger doesn't mean better, big enough for ur engine OK lar. Don't tell me a stock b16a is going to put a 67mm or 70mm TB.
Im using evo 8.. that is still standard.. no touch up yet.. i wan to know.. which ecu is the best for my evo 8 guys... i heard about standalone ecu for "adaptronic ECU".. is it good using adaptronic than haltech or...
The Shanghai Grand Prix may have ended on a sour note for the Red Bull Racing team as the wrong pit strategy let them down and allowed McLaren to snatch a win but...