could we use an HKS VPC and eliminate the MAF??? how would this work?

u have to find the one for the SR20's. They have diffrent chips for them so u can go bigger injectors on them. Good luck

how would it work with my jwt ecu? would it be a pain to use?

VPC, eliminates MAF sensors on such equiped cars and turns it into a speed density system. It controls fueling similar to what the Super AFC is capable of. It also allows finer tuning of the fuel map with the GCC. Too bad it isn't made for our cars, and is having some of it's applications deleted, like the DSM application.

With the VPC your also able to gain 30whp-50whp right off the bat with some basic tuning. Ive felt it in my brothers 7m, but its expensive considering it cost $1K.

U won't find a VPC here for a SR20. It would have to be in japan thats why I said good luck.