There is no trace once it has been removed however if they suspect then I am sure if they delved very very deep they could find something, efficiency, for example. however, I suspect they would not go this deep unless you had other mods which made them suspicious.adam b wrote: ↑Tue Jan 07, 2020 10:35 am Phew! thanks So two different products
1. VR tuning
2. Speedbuster (which includes a camshaft sensor)
2 are re-branded by VRTuned and TMC, and sold by Flat6 and other tuning companies
VRtuned do them for $600 but in good old rip off UK they are £600
Do they leave any trace in ECU once removed?
The good thing is these engines have been out long enough and I have not seen any reports of this happening.