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Yes and yes


If you've ever had a car with a manual choke and found it will drive itself without you having to touch the pedals if you leave the choke out ... most of these do the same
 
sweet, ive just ordered 500 of each and im banging them out at a £10 each
super rich here i come
 
I didn't have any intention of buying, just wanted to know the principals of what they do!

Although a dial in the car that can add 45bhp or return it to normal does sound good. I think a genuine one does exist for a pretty hefty fee?
 
I didn't have any intention of buying, just wanted to know the principals of what they do!

Although a dial in the car that can add 45bhp or return it to normal does sound good. I think a genuine one does exist for a pretty hefty fee?

Called a boost controller isn't it?
 
If you've got a turbo ... but these just **** up *ahem* modify ;) the fueling

In much the same way a two-stage map or an air/fuel module (read Apexi AFC etc etc) would