Theres no guarantee. Two of my friends had them and both tripped CELs but then another friend didnt. All cars were OBD2

 

I didn't get one from the magnaflow Cat

 

if you have a y7 you need to get a y7 header....not any sohc header....cuz of the crap *** cat placement on the y7...if you get a y8 youll be running catless....or just go buy a cat and have it welded in. The junkyards are going to be your best bet so go look again!

 

I'm not saying that you will get one...but its not a guarantee you wont

 

http://cpwstore.carpartswholesale.co...294965605+9339

you're not gonna beat that price brand new.