I have been running them all this time. They do help with gas mileage and downforce. I noticed the front helps a lot going up gravel driveways. It works as a skid plate.
Coils, Skid plate, Billet grille, Steeda CAI and STS, FSwerks Stealth Exhaust, ST spoiler, Zetec S body kit, Mid Wing, Bojix Lip, Steeda prototype engine cover
Sonic's MK3 Crew #9 Chaos!