Do I need an O2 sensor or gaskets to install this?

You'll want to grab new gaskets for the manifold and downpipe flanges—reusing old ones risks exhaust leaks. O2 sensors aren't included; check if yours need replacement based on mileage or scanner codes before you start.

Will this bolt straight to my stock exhaust system?

Yes—it's designed for factory mounting points. Your existing downpipe and muffler bolt up directly. No cutting, welding, or adapter pipes needed.

Can I install this myself or do I need a shop?

Doable in a driveway with jack stands, wrenches, and basic patience. Exhaust work is straightforward, but allow time for bolts to cool if they're stuck. A lift speeds things up, but not required.