When I run the car in stage 1 (cobb) for a bit, drive the car hard and than slow down I get a burning smell in the cabin. Not overly powerful a smell, but it's there.
It's not brakes or rubber. It smells almost plastic like, with a tad oil smell.
I initially thought my engine bay was dirty, so I washed it down but no luck. I've checked for oil leaks and nothing.
I suspect my turbo is getting very hot and throwing off a smell, yet as a closed system that doesn't seem reasonable.