I Tested the Trx4 High Trail Upgrades: My Honest Review and Collecting Tips

These tires earned the top spot because they provide a massive boost in traction where other treads simply spin out. When you are crawling through thick, wet mud, these act like mechanical claws that pull your rig forward with absolute authority.

I’d rank these as the best choice for anyone tired of sliding off line on technical trails. The soft compound is excellent, though you should expect faster wear if you spend most of your time on abrasive, dry pavement.

This kit is built for the night-owl crawler who refuses to pack up when the sun dips below the horizon. It turns your rig into a beacon, illuminating the ground directly beneath your tires so you can pick your line in total darkness.

In my view, this is the cleanest way to upgrade your scale realism while gaining genuine utility on twilight treks. Just remember that it requires specific additional components to function, so check your existing setup before buying.

These links feature an unexpectedly high mass that effectively shifts your center of gravity toward the earth. By adding 46g of weight low on the chassis, your truck becomes much more stable on steep climbs.

I see these as a hidden advantage for anyone who feels their truck is too top-heavy. They are surprisingly robust, though the added weight means your motor will work slightly harder over long sessions.

The most common complaint about these shafts is the initial stiffness during installation, but this is a small price to pay for such durability. Once seated, they eliminate the twisting and snapping that plagues plastic stock parts.

I’d point most people to these if they plan on running a more powerful motor or larger tires. They provide a rigid connection that translates every bit of torque directly to your wheels.

These shocks offer a more refined damping experience than the previous steel drive shafts, focusing on suspension control rather than raw power delivery. They provide the smooth, controlled movement needed to prevent your truck from bouncing like a pogo stick.

In my judgment, these are the best way to quiet down a jumpy suspension. They are a significant step up in fluid-based performance, though setting the correct oil weight takes a bit of patience.

These gained popularity by promising to turn your plastic-heavy rig into a rugged, scale-accurate machine. That reputation holds up well, as the CNC aluminum adds a solid, substantial feel that protects the body from direct impacts.

What stood out to me is the sheer precision of the machining. While they look excellent, keep in mind that metal bumpers add weight to the extreme ends of the truck, which can affect your climbing angles.

These earned their place because they provide a critical layer of protection for the lower side panels of your truck body. They act like a shield, absorbing the scuffs and scrapes that would otherwise destroy your paint job.

I’d rank these as an essential for anyone who likes to squeeze through tight rock gaps. They are simple to install, though they can occasionally act as an anchor if you don't choose your line carefully.