Hey guys i ordered new magnaflow Ypipe an cats for my D1 and went to install it and my O2s wont fit. My D1 sensors are 12mm and the new cats are 18mm. Did i accidentaly get a D2 Y pipe? Can some one tell me the size of the D2 O2 sensor threads?
Thanks in advance Ill go back over to the D1 side now

 

Call your supplier and quit guessing.

 

D1 O2 threads are 12mm, DII are 18mm.

 

Thanks thats what I needed to know. The part# on the box is for D1 but its a D2 part in the box.

 

magnaflow f'up for the win... send that one you don't need over to me!

 

Yeah you mite get one hell of a deal on it, the supplier wont take it back becuse ive had it too long sitting in my garage, but they are gonna give me a go to h%@@ price on what i need it sounds like

 

let me know im calling dibs now.

 

its slightly used I had to get to work with it but it should be fine. I just plugged the holes to get to work and back