What size MAF adaptor do i need for a 2000 LS V8? and where can i get one cheap?

If you're talking about the adapter plate so you can attach a cone filter, I got one at OReilly's for like 6 bucks. Works great. In fact, I got a Spectre cone filter too. I think everything with the silicone coupler was about 40 bucks. Probably less than that though.

There was only one size adapter when I bought mine. I forget the size of it. But I did have to go to a hardware store for the bolts/nuts/washers. And I had to redrill the holes on the adapter plate so they would line up properly. Then I used some foam tape in between so there was a good seal between the MAF and the adapter.

yea i had a KKM true rev cone filter kit and MAF adaptor, but they found there way to the trash. sometimes i wish i didnt throw everything away!

Mine is a SPECTRE PERFORMANCE Power Adder. Its a 4" out (for the filter). part number #8145

fits 2000-2002

good info Monk LS!

If you want a MAFS adapter that looks very presentable and functional but with a little more cost then go to LSKoncepts. I believe he has a few of them available.

If you are into just pure functionality and bottom price then go to your local auto parts store and pickup a machined aluminum universal MAF adapter there. You will have to probably do a little redrilling of the holes to fit your MAF bolt pattern though.