Thankyou, likewise, some seriously lush cars you have It's lovely hearing people say its nice in person too, I know sometimes cars can look world apart in photos
thank you yeh the teg box seems a lot better!
Did Will not give you some ideas on the issue? I've got a graph of mine standard and that was 136whp iirc. So your not a huge way off where mine was like 4 years ago.
AFR drops like a stone after 6500, like you say that's what's robbing your power.
I don't think there's an actual engine issue, I think it's likely to be sensor or something.
Have you checked that you've actually got a stock ecu?
I would start by giving it a bit of a health check,
Check compression
Check throttle body is clean including hole for map sensor
Check plug gaps/replace plugs
Check condition of dizzy cap and arm
Check/clean engine earths
Have the injectors flow rates tested or replace them
Gaaaawd Dayum