Personally Id probally stay away from boost controllers and boost bleed valves not necessarily as they do any damage parr-say but mainly as its easy just to keep winding up the boost until something goes pop.

Whenever you used to read an artical in a car mag about people buying a new turbo car they would wind up the boost and would be great for half an hour until it went bang then they would splash LOADS of money rebuilding the engine into a super Douper street maching, which is all fine if you got the money...

Now turbo timers kinda interest me more, as you can set how long you want to leave the car running after you've been out for a trash, now again me personally I 'Always' leave the car to tick over for at least 30-60secs, during the summer if its somewhere I know either at home/mates/family I open the bonnet to help the engine cool down (more so if Ive been on a motorway run or spent long time in traffic during the summer)

If Ive been on a 'spritted' drive I leave it for longer to just tick over, basically thats all a timer will do.

I think the best quality turbo timers (like alot of things) come from the land of the rising Sun (JDM), wont be the cheapest but normally best quality

Turbo timers and boost controllers and different things, depends what you need

I no I was thinking of both. The turbo timer just for a gadget and the boost controller to drive it withough boost around town and then turn it up to standees not turn it up over Wat it should be .

As Chris said just use the sport button as a boost controller as really that's all it is (but not set by you)

If you do get one and they work get a Apexi AVC-R, they are brilliant, you can choose what boost you want in what gear, plus it has a turbo timer built in. They retail at about £300.

I never looked into that topic for the 500, but it a Turbo timer is a funny gadget.
Not really useful though, as you could just drive the last minute a little bit slower...

I am not sure how this works in the UK, but in other countries they are strictly forbidden (MOT and insurance wise).

  I alway do it 

More popular in the JDM world on cars with bigger bhp builds, dont think they really caught on over here.

Japanese love thsir gagets