you should disconnect the battery when unplugging sensors, its in the directions for a reason. plus by disconnecting the battery the computer will adjust to the new part quicker instead of car running like crap for a while till it adjusts.
CAI Cold Air Intake, BMR Strut Tower Brace, BMR 1.2" Lowering Springs
Gen5DIY Fog Lights, Big Worm Third Brake Light/Side Marker Tint (Charcoal)
GTS Tail Light Covers, Purple Under Hood Lighting
Magnaflow Resonated X-Pipe w/ Muffler Delete
Black Plasti Dipped Wheels, Z/28 Spoiler