Quite smelly exhaust after header install + OFT Stage 2+ tune

[Turdinator]

Originally Posted by H_K

Aside from the header, which is a JDL uncatted UEL, I have a completely stock exhaust all the way back.

I know that since I removed a cat that my exhaust might get a bit smelly, and with the OFT Stage 2+ tune I know that my engine would be consuming fuel differently.

However, what I didn't expect, was that my car's exhaust would get so smelly.

I have a pretty enclosed single car garage, and if I reverse into it, the smell is almost too much.

Is this a problem with the tune? I am fairly sure there's no exhaust leak. It seems to be running extremely rich.

When do you smell it? On start up? During normal driving? Stopped at the lights? Or only when reversing into your garage?

[JohnH]

ok, so I just did this. Gruppe-S UEL, and the rest of the exhaust is bone stock

With the OTS OFT Stage 2+ it was a bit smelly, but not bad at all. My decatted 600cc sport bike(2017) smells worse. There is still a pretty big cat in the system, its just further away so it takes a while to light off.

Once I upgraded to a Wayne Watson rom, the smell went away almost all together. Car is faster, and pulls more smoothly too.