Ok, so I dropped the Z off to have the Top Secret CF Rear Diffuser installed, and now apparently they are having issues.

I am running the OEM rear bumper with the HKS Dual exhaust. The body shop called me and said that when they test fit the diffuser it is hitting the MUFFLERS, not the tips itself.

I know there is a list of exhausts that it will work with somewhere on this forum, but I wanted to see if anyone could give me some advice as to whether I should do a different rear bumper or just modify the diffuser to make it fit ?

 

search. theres even a thread that shows how the guy modified his diffuser to fit his HKS exhaust.

if the diffuser is hitting the muffler how is getting a different bumper gonna change anything?

 

HKS exhaust requires you to modify the diffuser.

 

here.

https://my350z.com/forum/media-share...installed.html