Thanks Rog - I have pro tune on an old laptop, never connected it before - will take a look
Calum - thanks for your response - I will remove the radial allen screws and see what i have. When i shine a light up the exhaust all i can see is a closed diameter approx 80% of the overall id. This could be the bottom of the conical baffle you describe. The sport exhausts I purchased in 2015 - so are probably early types.
I haven't seen any wadding - just picked this up from previous exhaust threads.
Will report what i find.
