Seconds,
not minutes
That is what leaving the tarmac and coming back costs you with the right kit: airing down four tyres, disconnecting a sway bar, finding more force at the steering wheel. APEX is designed by an engineer with more than forty-five patents, and we run the official distribution of the brand in Poland.
- Authorised distributor
- Made in the USA
- Polish VAT invoice and warranty
- 4x4 workshop in Warsaw
- EU-wide shipping
One engineer's company, after doing the same work for everyone else
For more than twenty-five years Paul Cox designed components for companies whose names anyone who has been under a truck knows: AFCO Racing, Fox Factory, where he was product design manager, then Falcon and TeraFlex, where he was technical founder and CTO. A fair share of what the off-road world now treats as standard came off his drawing board.
He left Falcon at the end of 2018 and started APEX. It is a small family business, manufacturing entirely in the United States, and the catalogue grows slowly — a new product appears when it solves a specific problem, not when a shelf needs filling.
| Founder | Paul Cox — AFCO Racing, Fox Factory, Falcon / TeraFlex |
|---|---|
| Founded | late 2018, after leaving Falcon |
| Patents | 45+ US patents |
| Manufacturing | United States, family owned |
| Main lines | air-ECO, LYNX, Steering |
| In the shop | 34 items at Szekla4x4.pl |
Six groups hold the entire catalogue
The manufacturer divides it the same way. Click the group you are after and you land straight on the product list, part numbers included.
Deflation
RPV and RCV valves and deflators. Four wheels in the time one used to take.
View → 02
Inflation
Large-bore R.I.V valves and QUAD-AIR for four tyres at once.
View → 03
CRS reel
Ten metres of hose under a seat or on the cage, with a bracket for your truck.
View → 04
Pressure gauges
Glycerine-filled gauges accurate to half a PSI.
View → 05
Sway bar
autoLYNX disconnects with a knob, airLYNX adjusts on pressure, kwikLYNX suits Toyotas.
View → 06
Steering
Forty per cent more force from the factory pump, a cooler and the TSR ram.
View →The catalogue splits three ways, and nothing overlaps
Each solves a different problem and is bought independently of the others. Most people start with air, because the difference shows on the first trip.
The air-ECO system
The CRS reel, rapid deflation and inflation valves, precision gauges and the whole 3/8 line of fittings. Thirty-five to ten PSI in under fifteen seconds.
- CRS — 10 m reel with brackets
- RPV, RIV, RCV valves
- PPG gauges, ±0.5 PSI
- QUAD-AIR — four tyres at once
Sway bar disconnects
Three different answers to one problem: autoLYNX disconnects with a knob, airLYNX varies the rate with air pressure, kwikLYNX does the job on Toyotas.
- autoLYNX — 8" and 10.5", Jeep
- airLYNX — 0–300 PSI, variable rate
- kwikLYNX — 4Runner, Tacoma, FJ, GX
- Remote fill lines
JL and JT steering
The factory electric steering on the JL and JT has headroom the manufacturer does not use, and cooling that sits on the edge. APEX addresses both.
- STEERING BOOST — +40% force
- Power steering cooler
- TSR — through shaft ram
- M210 / wide D44 axle only
Four numbers that explain the price difference
All of it, not half
A typical push-on chuck depresses the valve pin about halfway. The HIGH FLOW chuck opens it completely, so with the same compressor the air goes in noticeably faster.
Fifteen seconds
An RPV takes a 35-inch tyre from 35 to 10 PSI in under fifteen seconds. The gate meters the air smoothly, so you hit the number rather than the neighbourhood of it.
Half a PSI
The PPG holds ±0.5 PSI with 0.05 PSI repeatability, from −34 to 79 °C. Glycerine filling damps the vibration that puts ordinary gauges out of calibration.
Zero to three hundred
airLYNX links are neither disconnectable nor fixed — they are adjustable. Pressure sets the rate anywhere from factory to trail, and you either forget about it or change it in a minute.
You buy from the people who fit it
APEX Designs distribution in Poland is run by Szekla4x4.pl Damian Łaga — an online shop, a physical store and a 4x4 workshop in Warsaw. This is not a warehouse with a spreadsheet: we fit the BOOST kits and coolers ourselves and know what that system looks like two seasons on.
- Advice on the right part for a specific year and axle
- Customs and tax on our side, Polish VAT invoice
- Warranty handled locally, nothing shipped back across the Atlantic
- Installation in Warsaw or shipping across the EU
| Shop | szekla4x4.pl — 34 APEX items |
|---|---|
| Address | Rafałowska 10, 04-992 Warszawa, Poland |
| Phone | +48 534 600 534 |
| biuro@szekla4x4.pl | |
| Workshop | BOOST, cooler and TSR installation |
Common questions
Do APEX parts fit European Wranglers?
Yes. The JL, JLU and Gladiator JT sold in Europe use the same suspension and steering as the US cars. The one thing to check before ordering the TSR is the front axle: the ram fits the wide M210 found on Rubicon and XR models only.
What about customs and delivery?
Customs and tax are handled on our side. You buy from a Polish shop, with a Polish VAT invoice and warranty handled locally. We ship from Warsaw or you collect in person.
Do you install these parts?
Yes, we run a 4x4 workshop in Warsaw. The STEERING BOOST kit and the cooler need the system bled properly, and the TSR needs drilling and hydraulic lines — not a car park job. Valves, gauges and autoLYNX you can fit yourself.
How is APEX different from cheaper copies?
The designs are patented or patent pending and calculated for a purpose rather than copied. It shows in the numbers: the HIGH FLOW chuck opens the Schrader valve fully, where a typical push-on chuck opens it about halfway. Behind it stands Paul Cox and more than forty-five US patents.
Tell us what you drive
Send the year, the trim and the tyre size and you will get a specific answer: what fits, what does not, and what is not worth buying. No link to the whole catalogue.