FAQs

Manta uses different stainless steels depending on exhaust size. The 2.5” and 3” systems use predominantly 409 stainless steel with some 441.

All 4” systems are manufactured from 304 stainless steel. Smaller systems benefit from 409 due to its superior heat-cycling durability.

Smaller exhaust diameters run hotter. 409 stainless steel handles heat cycling better than 304, making it more durable for high-temperature operation typically seen in 2.5” and 3” systems.

No formal flow-rate data is published. There is no universal industry standard for flow testing, meaning comparisons between brands are not consistent or meaningful.

Manta cats have a cells per square inch rating of 200 CPSI. Stock CPSI is usually around 500+

Manta cats are all 200 CPSI (cells per square inch) and use a high-flow metallic substrate rather than ceramic. They comfortably support vehicles producing more than 500hp. Stock CPSI is usually around 500+.

Yes. Manta’s turbo-diesel exhausts and catalytic converters are sized to eliminate choke points and ensure the system remains a genuine performance upgrade over stock.

Yes. The high-flow metallic substrate in the catalytic converters supports well over 500hp, making Manta systems ideal for high-output applications.

Yes, the valve includes mounts for the VS-950 and VS-650 type TPMS (tyre pressure monitoring system) which are used by Ford, Jeep, Dodge, Ram, and most other American vehicles. Please check the APEX Designs page for completeness.

Salt Shift products are 100% Australian-designed and specifically formulated to remove salt, grime, and corrosion from marine and outdoor equipment. Unlike generic cleaners, our solutions are biodegradable, non-toxic, and safe for all surfaces..

Yes! Our formulas are non-corrosive and safe for gel coat, fiberglass, aluminum, stainless steel, plastics, rubber, and painted surfaces. They effectively remove salt deposits without causing damage.

No! Our formulas are pH-balanced and designed to clean effectively without stripping wax, ceramic coatings, or protective sealants.

Yes, the Salt Shift wash is formulated to be safe for all vehicle surfaces, including paint, metal, and plastics. It’s tough on contaminants but gentle on coatings and finishes.

Yes, regular use helps prevent corrosion by removing salt and contaminants that can damage metal surfaces.

Salt Shift formulas are twice as concentrated as standard cleaners, so they should be diluted at a 20:1 ratio (20 parts water to 1 part Salt Shift). For foaming guns, simply fill the bottle with the correct dilution, and the gun will mix it automatically. For spray bottles, pre-dilute the solution before applying. This ensures maximum cleaning power while remaining cost-effective for long-term use.

No. Rust Shield is completely free of PFAs.

Rust Shield is an oil-based protective formula that coats metal surfaces, helping block moisture and prevent corrosion.

No. Rust Shield is not lanolin-based.

Application depends on driving habits. Rust Shield can last anywhere from 6 - 12 months depending on how often you use your car off-road. We suggest checking before each trip to ensure you're protected. How to check: Rust Shield leaves a hydrophobic barrier on your vehicles chassis. Once the hydrophobic properties start to fail It's time to reapply. Pro Tip: If your Chassis doesn't rinse clean with a quick wash. Your Rust Shield coating may need topping up. If you are a passionate off-roader or beach goer - you may need to reapply Rust Shield several times per year to ensure you stay protected.

With only one jet the pressure now becomes 3 times more powerful as it is not being diluted between 4 jets, it also allows you to put in a height extension pipe and interchange the nozzles, making it a much more versatile and powerful tool to clean the underside of your vehicle.

Yes, the Underbody Blaster Pro is designed to help reach and clean hard-to-access areas under your vehicle.

The rapid world-wide growth in modifying civilian 4x4 vehicles has created a significant need for well-engineered brake upgrade solutions. Overland enthusiasts are fitting roof-top tents, bull bars, long range fuel tanks, water tanks, additional battery systems, storage systems, additional spare wheels etc. All of these accessories significantly increase vehicle weight, which severely affects brake performance and results in increased stopping distances. Larger wheel and tyre packages are also becoming increasingly popular. These generally weigh a lot more than the factory-fitted wheels and tyres. This additional rotational mass again severely affects brake performance, leading to increased stopping distances. Many 4x4 enthusiasts are also tuning their vehicles, adding significant horsepower. More speed = more energy, resulting in increased brake temperatures and ultimately brake fade.

Powerbrake X-Line 4x4 big brake kits are engineered from the ground up to be the ultimate brake upgrades available on the world market for 4x4 vehicles. They deliver significantly improved brake performance, reduce brake fade and vastly improve pedal feel and modulation. The performance gains achieved when fitting our big brake kits vastly outweigh the benefits that can be achieved by fitting upgraded, standard diameter discs and pads. Our civilian X-Line 4x4 big brake kits feature direct technology transfer from our R-Line off-road race brake systems that have been used by works race teams to win multiple FIA Cross Country World Championships as well the infamous Dakar Rally (which is regarded by many to be the most gruelling motorsport event on earth).

Our World Championship winning R-Line off-road race brake systems have proven themselves over a period of more than a decade in race conditions ranging from the scorching deserts of South America, the Middle East and Africa to the snow-covered forests of Northern Russia, to the fast gravel tracks of Mongolia in the hands of the world’s best off-road race car drivers. Our civilian X-Line 4x4 big brake kits were designed by the same team that designed our renowned R-Line off-road race systems and they are manufactured on the same state of-the-art equipment, in the same factory. All design features found in our civilian X-Line 4x4 big brake kits were directly developed through our extensive involvement at the highest levels of international off-road racing. The exact same technology, features and materials found in our Dakar Rally winning R-Line off-road race brake systems can be found in our civilian X-Line 4x4 big brake kits. When we claim “direct technology transfer” from our race to our civilian brake systems, we mean it. Every single feature in our X-Line 4x4 calipers can also be found in our current production R-line off-road race calipers that we supply to leading Dakar Rally teams.

There are two offerings in our X-Line 4x4 big brake kit range (Stage-1 and Stage-2). Both kits feature the exact same X-Line 6-piston off-road calipers, caliper mounting brackets, high-performance brake pads and stainless steel braided brake lines. The difference between our Stage-1 and Stage-2 kits lies in the discs. Our Stage-1 kits include 350x34mm 1-piece discs with 48 x directional cooling vanes. Our Stage-2 kits include 345-395x34mm 2-piece, floating disc assemblies with 72 x directional cooling vanes. Our Stage-1 kits offer a massive step up in brake performance and cooling over the factory brakes at a competitive price point. Our Stage-2 kits take the disc technology a step further and are the closest that a civilian 4x4 owner can get to our World Championship and Dakar Rally winning off-road race brake systems.