Hey all, new to the boards. Im a SUV guy as well and have a modded Xterra and they make an intake manifold spacer which yields some pretty good gains in torque and hp. I was wondering if they have anything like this for the ISx50 models. My wife's 250 is on the slow side and im just trying to figure out how to squeeze any more power out of the motor without spending absurd amounts of money doing other things. In the xterras It would go directly underneath the intake runners and basically lengthen the runners giving you more HP/tq. Any thoughts?

 

Intake spacer would probably gain 0 hp on any isx50 and might hurt performance as well. Best bang for the buck would be the Joe Z intake pipe. Exhuast and headers would be next for hp gains but for an is250? Don't expect huge gains. Even on an is350, hp gains are minimal.

 

I see. It was worth a thought. I have an AFE in right now and looking for exahaust and go from there.