I am in the US at the moment and will be staying here for a couple of month on a work assignment. I am thinking of buying the following goodies for my TME while I am here. What brands do you recommend for the following? would appreciate if someone can gimme some tips on where to buy them in the states. I am in Maryland.

(1) Boost Controller (Apexi? Blitz? HKS?)
(2) AVC (valve controller)
(3) AFC (air-fuel ratio)
(4) 4/5 Pointer Harness (Sabelt?)

 

Just get an Apexi boost controller, which is the AVC-R. I don't think there is a "valve controller." As far as the AFC, only use it conjunction with a lambda probe for monitoring when setting it up. The harnesses are a very good idea, I have set mine so that I can still use the normal seatbelt. Harnesses are a big pain when driving in traffic...