Thanks NMK and Mog. Didn't c ur post's. I suck at this forum stuff.

Originally used Glenlevit's  (forum member) genius Pizzabox Air Intake Field Fix mod then went permanent using Firewater Forged of Arizona's (forum member) basic design with a few twist of my own. The twist are: 1. At the air box junction behind the passenger seat panel I added a 2" ABS coupler to the end of the gray conduit and then shoved it into the factory boot and clamped it down. It fit super snug and seems to be leak proof. 2. I suck at bending 2" ABS so I went with store bought angles and cut my pipe to fit my standards and desired clearances. 3. I used a 2" flanged rubber spud washer in the 3" hole I bore through the wall of the bed behind and between the seats. Everything else I credit to W's simple, effective and well thought out design.
My tips are watch the Firewater Forge vid at half speed. Take pic's of the vid and reference them when you're cutting and building. Be patient. Do small increment cuts for exact fit. You can't add material if you cut too much off your pipe. His vid and my pics will tell you what you need to see to do this mod. I'll report back after I log a few hard days of running out in the MOJAVE DESERT this Fall and Winter rockhounding. I'll be doing the CVT intake mod W did to his Z8T this winter in my garage.
************ Intake mod finished / CVT Intake mod completed**************
Used the basic Firewater forge CVT intake mod design with one change. I used an off the shelf ABS 3" to 2" reducer as a bushing. It seems to be fine so far. I couldn't get the plumbing to fit behind the trim panels without it touching the exhaust pipe. I figured even wrapped in reflective tinfoil tape this was a recipe for disaster so I left it as is for now and plugged the drill hole in the bed. I'll make another run at it in the fall.

Update on trip to Utah. A lot has transpired since then. Went on a biz trip to Panama. Got Covid from my biz partner / best friend. Prior to leaving Panama tested negative. Got home, gave it to my wife then both of us became symtomatic. We both got vaxxed in March.  Delayed Ut trip until we tested negative. Picked up the Z8 trail in St. George after a 6 hour drive. It was 117 at 4 pm🔥. Loaded it up in the toy hauler and headed up to 6500' Pine Valley Rec Area.  That was a treat. Breathtaking spot. Gods country. Rested, lollygagged, added goodies to the Z8 and performed the pizza box mod to the airbox (thanks glenlevit!) Moved on after 4 nights to Panguitch Lake. Rode a little break in time. Got familiar with the machine. Fished, more lollygagged with the Mrs and did some rock hounding in Blue Springs and BH Peak. Exceptional cool weather during an epic early SW heatwave. After 5 nights we moved on to South 40 RV Park in Marysvale. Wow. What an exceptional riding spot. Massive trail network of all types of terrain. Town is super ATV/UTV friendly. Machine ran great even at 10,000 feet up at the snowline. Cut trip short after 5 nights.  My biz partner / best friend in Panama succumbed to Covid complications and passed away. Very sad. I had to rush back to Panama. Stayed a month. Got him properly sent off to the afterlife, reorganized our company, and came home to my wife. What a whirlwind. The machine is blocked and strapped into the bed of my 2017 RAM Tradesman Crewcab pickup. 6 ft bed, tailgate down with assist bars and 3/4" sheet of plywood to the gate edge. 9 foot foldable Black Spider alum ramps. 1" to spare. Drove it this way 30 miles on a mountain road so its tried and true. It didn't budge. Backed it in. With rear tires against back of bed the bumper sits 5" from the rear window. Won't be transporting it this way much but wanted to see if it was possible in my truck if I had to. Some BLM/USFS RV parks won't let you drive your ATV out to adjoining trails.

Hi'yall. Put down a deposit on a new ZForce 800 Trail in St. George, UT. Cali prices are redonkulous. Paying quite a bit less in UT. I've been reading a ton of stuff about the breathing mods, and other things all of the members post about. Great info. My wife and I are avid rock hounds and in the winter one can usually find us out in the middle of the Mojave mining something cool out of the hills. We got a BMS Stallion 600 RX-EFI to up our game because our trusty and tough goto rockmobile, an old Gen I Xterra has its limitations. The Stallion is cool and all buuut, I needs a little more umpf and speed. My wife probably disagrees but hey, I make those all important, what goes in the garage decisions around here. With her permission of course. .
First place we're going after we pick it up is to Panguitch Lake and Brian Head then back down to Marysvale, UT. & Paiute Trail Country. I'm as stoked as an 8 yo on Christmas eve. Then its east to Green River for some rock hounding. I'm sure once I'm a bit familiar with the Z I'll begin making some Hillbilly rockhound-centric mods to it to fit our needs. I've already got my pizza box all lined up and ready for a temp breather mod for the Marysvale rides. I'll do a perm snorkel type mod for the Airbox and CVT routing them ala Azfireforge maybe trying the inside the cab routing. Our stomping grounds are not quite as dusty as some of these other places I read about. Peace out for now and thanks for all of the helpful info.