Sup yall, I am new to forum and this is my first Civic (99 4dr EX). I plan to swap my D16Y8 (head gasket is leaking) out with something else. I will google for the info I need but I am might still be confused so bear with my questions please. So far I have lowered it with Tein coilovers, different aftermarket suspension to get my alignment squared correctly, and dc muffler (the oem replica muffler fell off due to rust). This my daily driver so I don't want to modified it to much and loose my MPG.