engages to pull the XP 4 out of drifts.
The wheelbase is 27 inches longer than
the XP Turbo’s and 15 inches longer
than an X3’s, so it’s not as quick to
pivot in turns, but it also has much
more stability than either the XP Turbo
or 64-inch X3s.
HOW ABOUT THE HIGH-END IBP
It’s awesome. Polaris and Fox
re-tuned the Internal ByPass shocks,
which have five compression zones
to deliver a smooth ride over dune
chop and trail junk, yet they firm up
for bottoming resistance on big hits
and dune jumps. The 2.5-inch front
piggyback and 3.0-inch rear remote-reservoir shocks have 24-position
compression adjusters that are set at
12 clicks out. We went to 6 out in front
HOW STRONG ARE THE BRAKES?
and 8 out in the rear for faster dune
speeds without bottoming on G-outs
and landings. Travel is still 16 inches in
the front and 18 inches in the rear.
Super strong. Whereas the XP 4
1000 has dual-piston hydraulic calipers
on all four corners, Turbos have three-piston front calipers with new stronger
front rotors, twin-piston rear calipers
and 248mm discs. Braking power and
feel at the pedal are impressive. They
aren’t backed up by EBS or Active
Descent Control, though.
WHERE IS THE XP TURBO HAPPIEST?
Anywhere it can stretch its legs.
Dunes and desert become a blur, but
WHAT ABOUT TRAIL COMFORT?
the XP 4 Turbo is also happy picking its
way over rocks. The extra wheelbase is
an advantage in both worlds, especially
in desert whoops, and throttle mapping
always makes it feel right at home, no
matter the situation. Also, we never got
the XP 4 Turbo to overheat, even during
a grueling photo shoot in 100-degree
It’s an off-road limo. Curved doors
offer more elbowroom, and the front
seats are on adjustable sliders. The
steering wheel is comfortable yet firm
and has 10 inches of tilt range. The
1.5 steering box and EPS greatly
reduce steering effort and hand-over-hand movement. The passenger
T-bar is adjustable and grippy, and
the redesigned glovebox latch is more
positive. Under-dash LED lighting
is handy at night, and Turbos have
an all-digital instrument readout with
backlight. Only the rear shoulder belts
have the adjustable top mount for less
The new front fascia has a 40-percent-larger grill to feed fresh air to
the new engine and Turbo radiators and a variable-speed, brushless fan.
Front travel is 16 inches, and front A-arms are linked by a torsion bar.
New upper radius rods are larger-diameter tubing instead of solid
rods, so they’re stronger yet lighter. The rear axle shafts are more
durable to withstand the extra forces of the 168-horsepower engine,
and rear Bighorn tires measure 29x11-14.
Polaris increased boost
to pump the 2017 RZR
XP 4 Turbo up to 168
horsepower and upgraded
the cooling, drivetrain,
steering and brakes to
deal with the increased
power and torque.