£1840 all in , 300 of that the diffuser Feel like that's decent value given it's BMW fit warrantied etc. RRP is about £3.5k but i don't think anyone ever pays that
Doesnt seem bad at all given the work you’ve had.
In addition, you’ve essentially had a remap thrown in too!
it does drop to <1000 once the engine warms though...doesn't take long on the B58
but yes...i leave for work ar 0630, and i'm the neighbourhood *******
Quick film on my phone does it no justice at all. It makes the house shake and if anyone is close they jump and/or stare.