i was just wondering which would help my mileage more the 65 horse quadzilla box or a new set of rv 275 injectors.I've got a 99 2500 4x4 auto with 3.55 gears and driving easy 16 or 17 is it.the truck runs really good,no smoke or cel .I have added a 4 inch full afe exhaust and a drop in replacement filter and I saw about a half a mpg gain.I know I'm not going to see 25 mpg but anything would help.I also run power service in the white bottle.thanks in advance for any replies.btw i have changed the fuel filter and also the lp.

 

Well if you want better mileage, get an EZ and some injectors. I went with Quadzilla products for my truck and I'm not impressed at except for the fact that my Xzillaraider only worked when I accelerated because the timing was off and I was able to put down 350 hp . Not only that is I tried to get this stuff resolved with Quadzilla and they have not sent me any notice of any progress in helping me out for over a month now so I do not know what is going on over there. I am on the edge of sending this stuff back and getting a refund. When I had my EZ on and Jammer 3's I was able to get 21 mpg. But thats my 2 cents.

 

I like how the EZ and the 275's run together. But if you can do both, go with an EZ or if you want the Quad box.

After your experiance Chris, I'll never go with Quadzilla. It is rediculous that they won't return phone calls or keep you updated on your status. I tell them to shove it and go get a Drag Comp. Just my $.02

Eric

 

i'm running stage 3 jammers with superchips and i get over 20 on the highway and right at 20 in town.

 

Your also not running an auto.

I would run the EZ and the RV275’s for mileage.

 

I am not running an auto either but after putting the adjustable Quad box on I have been running on the 30 hp setting and I have consistantly been getting 19 to 23 mpg hand calculated. I am only running about 10 miles per day but when I have taken her on longer trips that is when I was getting 23. I have not had any problems with the Quad but I know there are some out there that haven't had good luck I even know a diesel shop that quit handling them after a supposed 100% failure rate for 6 months but I took the chance and am very happy

 

Most upgrades net less mileage since it is so fun to mash the throttle. I used to justify upgrades for mileage but in the long run, you will never break even. On a side note, the fun factor more than makes up for the price. I like my RV's but already want bigger sticks. If you buy an ez, you will prolly make it another year before more upgrades. If you buy a comp, or similar 120 HP box, you will be instantly addicted and will blow all your cash over the next 3 months.