Thanks for the reply,

I assumed the “cough” would be mapped out. Every day is a school day.
Yep I am familiar with piggy backing as the more modern the vehicle the more one system demands a response from another system. Ie the Rs dash has few sensors of its own. Instead getting data along the bus from the ecu.

So Sabre don’t have as much control over the ecu as they say.

I also wondered how they where getting 400bhp+ out of a modified Gt25 exhaust housing.