What is the exact difference between those two? May I use 93 headers in my 95 car (I have no EGR and AIR)?

 

The only difference is the passenger side connection for AIR/EGR. If you don't use AIR or EGR, you can use any headers in any year.

 

You do mean any lt1 headers right?

 

Were you looking at the 93 SLP headers? I just got done installing mine. You have to get rid of the EGR and AIR by plugging the 2 holes on the headers (plugs can be found at NAPA or a muffler shop) and you need block off plates for the back of the intake. One other thing that nobody mentioned to me is i needed an O2 extension for the drivers side, i ordered a 12" extension and hopefully that will do it.

 

OK... we're here on the LT1 forum... but let me make sure we are 100% accurate.

CORRECTION:

The only difference is the passenger side connection for AIR/EGR. If you don't use AIR or EGR, you can use any year LT1 headers in any year 4th Gen with an LT1 engine.

My apologies for confusing everyone

 

And to further clarify, that's only applicable to "F-Body" LT1's.

We don't want to risk confusing our brethren (and "sisteren") with the Impala/Caprices, Roadmasters or Fleetwoods.

 

thanks for your answers, it's helped a lot.