Hunter and Cody Miller have dominated the 2021 $200,000 Texas UTV Race Series at TexPlex Park, with Cody winning three Pro Turbo rounds and Hunter winning the other two runs thus far. So, Cody leads Hunter in series points—117-104—at the halfway point of 2021. This is a reversal of 2020, with Hunter winning four rounds and the Pro Turbo title over Kyle Hart, while Cody was third in points with one win. We caught up with the Millers at round five to get the scoop on their factory Can-Am XPS Maverick X3 Turbo RRs, which were built by S3 Powersports with Teixeira Tech suspension. Here’s what makes the Miller Brothers’ X3s so fast.

Hunter Miller is defending his 2020 TexPlex Pro Turbo Championship in his X3 XPS Turbo RR with Teixeira Tech 72-inch suspension and S3 Powersports race armor. He has two wins in five rounds and sits second in points.


S3 fabricated the Miller Brothers’ X3s cage ($995), roof and integral rear bumper around the Hess Motorsports X3 radiator relocate kit with three fans ($1150), which includes a CBR dual-core radiator, mounting brackets, overflow bottle, hoses, clamps, all mounting hardware and fan override with switch. S3 also fabricated the front bumper, and the Millers run S3 front shock tower braces ($295), heavy-duty tie-rods ($295) and radius rods ($275) and a plate ($109). Their X3s are also beefed up with S3’s transmission brace ($125), front gusset kit ($295), front bulkhead ($249), and chassis weld-in gusset kit ($225).

Miller Brothers’ X3s used Teixeira Tech suspension for the Hammers UTV race for 2021, and Hunter uses the same suspension, front diff and more for short-course racing. Hess Motorsports beefs up both X3s with steering quickeners, rack supports and clevis eliminators.

Hunter also won the 2020 King of the Hammers UTVs, and his #1 Turbo RR has a lot of Hammers technology, including the Smart-Lok front diff and 72-inch Teixeira Tech suspension. Teixeira’s 72-inch A-arm kit ($1,149.95) uses 1.5-inch 4130 chromoly tubing and sheet metal gussets for added strength without adding unnecessary weight. The high-clearance arms have O-ring-sealed Delrin pivot bushings, heat-treated sleeves and large ball-joint cups. They also supply improved steering geometry over stock. Hunter also uses Teixeira’s 72-inch trailing arms ($2099), which have 4130 chromoly sheet-metal construction with internal ribs and a high-clearance design. The trailing arms have 3/4-inch front spherical bearings and threaded bungs for roost guards and skid plates.

Hunter runs the stock X3 air box with an extended air duct drawing air from above the S3 cage and roof. Double-E Racing tunes his Elka Stage 5 3.0 remote-reservoir shocks and E2R torsion bar.

Cody uses Teixeira’s 64-inch X3 suspension, and the A-arm kit ($1,149.95) has the same construction and features as the 72-inch A-arm kit. Teixeira’s 64-inch trailing arms ($1,949) have the same 4130 chromoly construction, high-clearance design and components as the 72-inch version, including 17-4 stainless-steel misalignment spacers. Hunter used this setup to win the 2020 KOH UTVs. Both Millers run Keller ball joints ($533.95) for added strength; they are made of 4340 hardened chromoly and covered by a lifetime warranty.

S3 Powersports built the cage and integrated rear bumper around a Hess X3 radiator relocate kit, and Hunter even runs the rear safety light from the KOH UTV race, as dust is pretty bad in Texas during the summer.


The Millers use Hess Motorsports 2:1 steering quickeners ($650), which have 6061 aluminum housings and bring the steering wheel closer to the driver. The replacement shafts for the quickeners are $130. They also use Hess’ D-shaped steering wheels ($90) and quick-release hubs ($90). Hess also supplies the X3 billet front knuckles ($750 each) that eliminate the weak wheel-bearing snap-ring setup with threaded-in bearing cartridges. They’re made of aircraft-grade billet aluminum and hard-anodized. Hess also has a new X3 steering brace that eliminates the OEM clevises in the steering rack, and the Millers also upgrade that with a billet brace in addition to the Hess billet X3 rack support ($480).

Hunter and Cody run the Hess X3 rear knuckles ($750 each), as the OEM knuckles have weaknesses in that the middle radius-rod mounts and wheel-bearing snap-rings loosen. The Hess billet-aluminum knuckles have double-shear toe links and thread-on bearing caps for the installed OEM wheel bearings. They are strengthened in critical areas and have OEM spherical bearings installed. They are also hard-anodized for durability and use OEM hardware.

Being Factory Can-Am pilots, the Millers use Sea-Doo GTX fuel cells complete with EFI pumps to save money over aftermarket safety cells. S3 fabricates the cell mounts and safety covers.


Hunter and Cody replace the stock Fox RC2 IBP shocks with Elka Stage 5 shocks (2.5 front, 3.0 rear: $4,799.98), and Double E Racing tunes the shocks and the Double E Racing rear torsion bars ($650). Hunter runs dual-rate Eibach springs on his Elkas, front and rear, while Cody has a triple-rate Eibach setup on the rear of his #3 X3. E2R does the valving on both and also tunes the cross-over rings and rear torsion bar for track conditions.

Hess billet-aluminum knuckles strengthen yet lighten all four corners of Team Miller X3s, and the thread-in bearing retainers allow changing the bearings without removal from the car. Stock brake calipers have braided stainless-steel lines and a front/rear bias control in the cab.


The Millers run HMF Performance Titan SS slip-on mufflers ($909.95) and X3 nerf bars. Evolution Powersports does their ECU tuning ($549–$1149), and both run Aim MX-UTV digital dash loggers, which include an infrared belt-temperature sensor and also use GPS for speed, position, lap times and even track data. They have two LED alarms and even do predictive lap times. Hess has them for $599, and Hunter mounts his on the dash to the left of the OEM X3 gauge, while Cody mounts his on top of the dash under the cage pillar.

Cody Miller has won three Pro Turbo rounds in his S3 Powersports Maxxis XPS X3 Turbo RR with Teixeira Tech’s 64-inch, high-clearance A-arms and trailing arms, and he’s ahead of Hunter by 13 points at the halfway point of the series.

They use Sparco Pro 2000 seats and harnesses, and PCI RaceAir Boost clean-air pumps. S3 also does the aluminum dash and passenger-side aluminum housing over Sea-Doo GTX fuel cells, which are secured by S3 cages. The older GTX fuel tank holds 13 gallons, which the Millers run for short-course races, while the new GTX tank holds 18 gallons, which they use for 12-hour races and KOH.

For TexPlex, the Millers run Maxxis SC1 27.5×10-15 tires with Tireballs on Raceline A93B Podium beadlock 15×6 wheels ($297.99 each). They also arm for battle with Factory UTV UHMW skid plates ($688.49) and PCI Impact helmets. 


Double EE Racing

29888 DuBois Rd.

Holden, LA 70744

(985) 507-3307

Hess Motorsports

202 N. Mesquite St.

Muenster, TX 76252

(940) 759-4597

HMF Engineering

5111 West 164th St.

Brookpark, OH 44142

(216) 631-6980

S3 Powersports

1918 Barton Dr.

Shreveport, LA 71107

(855) 221-7097

Teixeira Technologies

20895 Reeves Rd.

Tracy, CA 95304

(209) 833-9160

[email protected]

See how the Millers set up their X3s for WORCS racing here: CODY & HUNTER MILLERS’ WORCS X3 TURBOS – UTV Action Magazine

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