What does A.I.R. stand for on 88-95 5.7L TBIs?

Looking in Jegs for a set of headers for my truck (92 K1500, 350 TBI), and the choices for my application said With A.I.R. and w/o A.I.R. What does that mean?

I've never heard of this.

Looking in Jegs for a set of headers for my truck (92 K1500, 350 TBI), and the choices for my application said With A.I.R. and w/o A.I.R. What does that mean?

I've never heard of this.

Never mind. I found out what it was. Its a secondary air intake, has a pump that pumps air into the intake I think. My truck doesn't have it.

It stands for Air Injection Reaction. It pumps air into the exhaust, which helps unburned fuel burn completely inside the catalytic converter.

It stands for Air Injection Reaction. It pumps air into the exhaust, which helps unburned fuel burn completely inside the catalytic converter.

Yeah, I found that out like 10-15 minutes after I posted it, lol. Its cool becuase those headers are like $15 cheaper then ones that are made for vehicles that have the A.I.R.

Thanks for the reply though.