Join Date: Jan 2009
Thanked 64 Times in 60 Posts
My friend and I installed some stage 3 nozzle tips in his truck and they seemed to run fine, so he decided to let it be and just run it. Later down the road about 6 months, he had them pop tested and 3 were out of spec. Since then, it runs smoother, and seems to get better milage then before they had had the pop pressures reset. The vendor he purchased them from said that they would be fine without being pop tested, however, I would never install another set without doing it.
Me personally, I run the Rv275's. They're a great little injector. Not too smokey, but some if I want it. I noticed about 3-4mpg difference on the highway with them too. If I drove nice and around 60-65 I can now get around 23 Vs. 19 with stockers, and if I drive 80ish I get around 20mpg Vs. 17.
I'd recommend the Rv personally, or a mach series injector if you're looking for a little more power than the RV has to offer. Nozzle tips are only worth it for the price, and you get what you pay for IMO.
2000 2500 reg. cab 4x4 auto 577hp
09 6.7L QC LB stick, 4x4.
TOTAL PERFORMANCE DIESEL 707-545-FUEL (3835)