WTB: S13 OEM SIDESKIRTS AND REAR LIP

[system]

well heres the scoop… i drive a 98 camaro v6 3.8L engine… 87,xxx miles…

today im driving my car and it starts to back fire so im like hmm maybe bad gas… so im driving all day and i start to notice my temp gauge go up to 240ish then back down to 180 and back up and on and on… the car smells really bad and takes off terrible and just back fires all the way down the road.

the check engine light went off, took it to autozone and they said the code was back firing which i knew that…

anyone have any ideas what it could be?

a backfiring code? new to me.