I have two ls6 intakes and I'm doing the swap from the ls1 right now. My question is what is the difference between the one with the pn.12573572 and the one with the pn 12561184? Is one better than the other? I need to know so I could finish the install. I heard one was off of the 01-02 camaro and the other is off of the vettes.

 

Here the specs they are both the same. I dont think it really makes a difference which one you pic
12561182 2001-2002 LS1/6 5.19 L 0.541 L 262 mm
12573572 2002+ LS1/6 5.19 L 0.541 L 262 mm

 

alright thanks cuz I already cleaned the 12561182 to look brand new.

 

Actually the Camaro one flows slightly better.