I don't believe anyone has ever knocked the quality of the miltek systems (prospeed, blueflame, powerflow and magnex maybe), the BTB is of higher quality due to the fact it's TIG welded but then the BTB doesn't cost £400 (its an entirely resonable £500 at the moment) and imho is a better design.
The Milltek does not look in the same league as the BTB as I have said before. When you look at the two systems I dont see how you cant see the better quality and design in the BTB.
For £500 the BTB is an absolute bargain IMO.
PS I dont have anything to do with BTB or shedmotorsport or have a BTB fitted to my car.
Unfortunatley though some people don't realise that you have to pay a little extra for something thats top quality, Mat and myself have had to fork out a lot of money to get these systems to the low price they are now and we still make barely any money on these. All things considered i honestly believe our system is the best out there, orbisoud included, which has the benefit of its cup car pedigree, all BTB have is that the likes of Prodrive being one of their biggest customers).
By the way, this is in no way a dig at the Miltek system, for the money they are they are good value (which is more than can be said for the other aftermarket systems out there), its just not as good value as the BTB, especially at its current knockdown price.