Re: Regulated return worth it?
It's a good upgrade if your planning on injectors later you will not see a performance increase but it is better than the blue spring band-aid. Also it will feed constant pressure to the back of the heads that are usually starved for fuel. If you do purchase a RR I suggest trashing the banjos that come with it and doing the 6.4 banjo upgrade... They don't have check valves in them and the washers are rubber coated less leak prone than the copper ones that come with the kit. The advantage to this kit is being able to adjust your fuel pressure, I believe the stock spring puts out about 54psi... The injectors are happier at around 62psi hope this helps... Oh yeah you can do the ad150 pushing your stock pump and it will keep 190/30's happy the ad150 is much more reliable then the adII 's the difference between the ad150 and the adII is the fuel pressure regulator... Make sense?
Pmax & batmowheel
Fass titanium 125 w/ sump
5" mrbp turbo back 6" tip
Reg. return w/6.4 banjos and oil and coolant filter
Sct itsx on iPad w/ Drew's tunes
Idp ficm tune
Empty bank account