well, I just got my HKS knock off cat back installed, it sounds awesome, looks awesome, but....after some serious driving and I pulled over my Z, I can smell something like burned plastic comming from underneath...I checked the rear bumper, they're in good condition so it must be something else underneath burned by the exhaust pipe, is that normal???

 

its normal. give it a few days if not a full week.

 

mmmmmmmm New exhaust

 

It's not broken in yet.

 

Normal. Like Black350 said, it shouldn't last more than a week.

 

^ Like they said, give it a few days!

 

There must be burning plastic under the car.

 

Emmmmm....Thank you every one!!! So Im not going to worry it for now~

 

Emmm,,,, but Im not seeing any plactic parts directly attached to the pipe underneath..

 

Like said above, new exhaust has a smell to it. I miss it personally!

The only thing that would cause a smell besides being new would be if some packing peanuts got left in the piping or something.