try this mate
i asked what type of civic i was sposed to luk for if i wanted like an EK9, someone gave me this shortcut, try it
not sure wats on ther tho lol
engine/civic-chassis-codes-t504.html" onclick="window.open(this.href);return false;
i wouldnt buy that its probably going to fracture crack all over the place
plus he says 20-30 bhp increase please you have got to be kidding that just shows the guys integrity
you will be lucky to see 5-10 bhp from an exhaust especially with no other mods the seller is full of shit.