Hi, Thanks for your advice.

Yes a "Back Box" is what you guys in the US call a "muffler". I'm from the UK so occasionally come up with strange terms like that.

My car is a 1995 Civic Esi 3DR, which is the same as the US "Si" (D16). Except, I'm not sure whether catalytic converters were fitted to Civic Si's as early as 1995 in the US? UK law meant they had to be fitted from 1992 onwards.

In response to Kia; I've looked under the car & it doesn't look like any welding is needed, as the muffler is suspended from "rubber bungees". There are only 2 bolts to undo, that attach the rear section of the exhaust (muffler + pipe) to the middle section. But, again, I have no experience of universal exhausts.

Will a resonator make the exhaust quieter? I don't want to replace the middle section of the exhaust, as it's practically brand new (previous owner). I'm not too worried about sound, as long as it's quiet.

If anyone has any more advice, it would be much appreciated!

Thanks,

Nick.