Milltek valve controller is the best £250 you'll spend, start up theater and more low down rumble. All the noise without needing to be in track if its wet and you want stability on etc.
I've gotba few quick videos I'll upload but I'm off to Spain for a few days tomorrow so will try and get some in car when I'm back
I've gotba few quick videos I'll upload but I'm off to Spain for a few days tomorrow so will try and get some in car when I'm back