Look out for a propper tuning box if you want something you can remove when you sell it.
I picked up a dragon performance box worth 300 quid for 80 on flea bay. Bloke i bought it off had it fitted to a Passat, it's got 16 settings, but i just stuck it in as was set, haven't looked at it since.
Si.
40mm drop / 17in Monty IIs / german plates / bee sting