FOX Shocks background


Ride. Handling. Traction. Comfort. All are directly related to shock absorber performance. When Toyota TRD engineers designed the 2019 TRD Pro models, their goal was to deliver the next generation of off-road dominance. That's where FOX comes in. For over four decades, FOX has been leading the way with suspension products for motorcycles, ATVs, UTVs, snowmobiles, cars, trucks and SUVs. FOX-equipped vehicles and racers have stood atop podiums in every sport they competed in, from the sands of Baja to the top of Pikes Peak.

FOX took their race-bred technology and created these bypass shocks so that the 2019 TRD Pro models have a cushioned, plush ride on the road that can handle the toughest terrain.


Shock absorbers are tubes filled with oil that are connected to the suspension on one side and the vehicle's body on the other. As your vehicle hits a bump, the suspension goes up and down with the shock absorber "absorbing" that "shock" before it's transmitted to the body, while making sure the tires stay on the road.

Here's how it works: an internal piston travels inside the cylinder, squeezing the oil into a secondary chamber through ports that restrict its flow, which is called the compression stroke. Then, as the wheel returns to its normal position, the oil flow is reversed, and that is called the rebound stroke. This works fine under "normal" conditions, but when you're crawling over rocks, or driving off-road at speed, conventional shock absorbers can become overwhelmed and may overheat.

That's why TRD turned to FOX for the TRD Pro collection.

FOX Shocks 3D Model
FOX Shocks background


To get a smooth ride on the road while also being able to perform off-road, FOX uses their race-proven bypass technology for these 2019 TRD Pro models. Here's a quick breakdown:

  • In the Ride Zone, when you hit a bump, fluid is allowed to bypass the damping piston through bypass ports; fluid is then pulled back into the shock body through open refill holes—this allows the fluid to bypass the piston freely to provide a plush, comfortable ride.
  • In the Bump Zone, when you hit a big bump, the shock compresses and the piston moves past the bypass port. The fluid is then restricted to flowing through the compression valving at full force, creating firmness and preventing bottoming.
  • When transitioning from compression to rebound, the piston is momentarily held at the top of the stroke, which helps prevent bucking.
  • During Rebound, fluid is then allowed to bypass the piston via various openings.
  • As the piston travels past the refill holes into the Catch Zone, the fluid is forced to flow through the piston's rebound valving at full force, which creates a firmness that prevents a harsh top-out load.

Long story short—bypass technology is precisely tuned to control wheel travel so it's like having four different shocks in one while you drive.

FOX shock and piston
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FOX shock absorbers


TRD and FOX worked hand-in-hand developing these unique shock absorbers. They conducted four different "tuning" sessions to ensure they were perfect before going into production. For these tuning sessions, the engineers set benchmarks and targets to measure performance and see where improvements could be made.

Each set of FOX shocks is tuned to the specific TRD Pro model:

  • TRD Pro Tundra Front shocks have 11 bypass zones (7 compression, 4 bypass); rear shocks have 12 bypass zones (8 compression, 4 bypass) plus 2.5-inch piggyback reservoirs, and wheel travel is increased by more than 2 inches in the rear.
  • TRD Pro Tacoma Front shocks have 8 bypass zones (5 compression, 3 rebound) and are paired with TRD-tuned springs that provide an additional 1 inch of front lift; rear shocks have 11 bypass zones (7 compression, 4 rebound) and are paired with 2-inch piggyback reservoirs.
  • TRD Pro 4Runner Front shocks have 7 bypass zones (4 compression, 3 rebound); rear shocks have 11 bypass zones (7 compression, 4 rebound) and 2-inch piggyback reservoirs plus a unique TRD roost shield that offers additional protection for the inverted shock design in the rear.

Long story short—bypass technology is precisely tuned to control wheel travel so it's like having four different shocks in one while you drive.


To make your Toyota sound as good as it handles, count on a TRD Performance Dual Exhaust System—it's the same exhaust system as used on the 2019 TRD Pro models. This exhaust system works with the state-of-the-art electronics and sensor technology to ensure vehicle emissions are kept to a minimum. Here are some more benefits of the TRD Performance Dual Exhaust System:

  • Reduces backpressure for added low- to mid-range torque as well as improved horsepower.
  • Deep, throaty, award-winning exhaust note meets a legal the 95-decibel noise limit.
  • Black TRD logo-etched tips give it that performance look.

A TRD Performance Dual Exhaust System—music to your ears.

TRD Performance Dual Exhaust
TRD dual exhaust