[Boostman23]

are any available? I know that upgrading this on a supercharged car helps out greatly. What is the stock size on the R/T TT?

 

[unclesam099]

there's two of them. the split second ARC2 and the HKS VPC (vein pressure converter). the HKS eliminates the MAS completely and the ARC2 uses a larger diameter unit. they are both fuel controllers as well.

 

[Boostman23]

?

Is there any benefits on one or the other?

 

[unclesam099]

use the search function and look for "arc2 vs vpc" and you will find a couple of LONG threads about this sort of thing.

but basically, the VPC uses a computer chip which estimates what the fuel curve should look like according to throttle input and the arc2 has an actual MAS.