If you want a permanent, precision-machined solution to close the wiper hole on your Mazda RX7 and protect your rear glass from the elements, choose Pro Spec Imports; if you need a versatile, extendable cleaning kit with multiple tools for wiping down windshields and interiors, choose TMZDCJK 20. These two products serve entirely different purposes in the automotive world, yet both target owners who care deeply about their vehicles. For truck owners specifically, while neither is a direct fit for heavy-duty truck maintenance, the logic of choosing between a specialized hardware upgrade versus a comprehensive cleaning system applies universally to anyone looking to maintain or modify their vehicle's appearance and function. One product is about engineering and permanence, while the other is about utility and reach.
• Pro Spec Imports: Its biggest strength is the premium CNC machined 6061-T6 aluminum construction designed for a watertight seal on specific Mazda models, but it is strictly limited to those classic cars and cannot be used for general cleaning.
• TMZDCJK 20: Its biggest strength is the complete all-in-one set with an extendable wand and reusable pads that handles everything from windshields to home windows, though it lacks the specialized structural integrity for permanent vehicle modifications.
• Choose Pro Spec Imports if you own a 1985–2002 Mazda RX7 and want a factory-quality delete plug that won't leak or fail over time.
• Choose TMZDCJK 20 if you are looking for a practical, portable tool to clean glass surfaces efficiently without needing to buy separate brushes, bottles, or sponges.
The Pro Spec Imports Billet CNC Aluminium Rear Window Wiper Delete Plug Kit is not a generic accessory found in every auto parts store. It is a highly specialized component developed through years of research specifically for the Mazda RX7 FC (1985 to 1992) and FD3S (1992 to 2002). If you own one of these legendary sports cars, you know that removing the rear wiper is a popular modification for aerodynamics and aesthetics, but leaving that hole open invites water, dust, and debris into the cabin. This kit solves that problem with a level of craftsmanship that generic plastic plugs simply cannot match.
The core of this product lies in its material and manufacturing process. It is machined from Billet 6061-T6 Aluminum, a grade known for durability and resistance to corrosion. The finish is UV resistant hard anodize II, which means it will withstand harsh sunlight and weather conditions without fading or degrading. Unlike stamped metal or cheap injection-molded plastics, the CNC machining ensures precise tolerances. This precision is critical because the kit is designed to create a completely watertight barrier. The inclusion of a large flat Neoprene rubber seal works in tandem with the metal body to prevent any moisture intrusion, keeping the interior dry even during heavy rain.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-11-06 · 7 min read · Independent comparison
This product is ideal for the enthusiast who views their RX7 as a project car that needs to look as good as it drives. It is perfect for the owner who wants a seamless black finish that blends perfectly with the rear window trim. However, it is also a product that requires careful consideration before purchase. It is only compatible with wiper holes sized between 0.86 inches and 1.42 inches. If your model does not fall within this range, or if you do not own an RX7 from the specified years, this item has zero utility for you. It is a single-unit purchase meant to stay on the vehicle permanently. It is not something you use occasionally and put away; it is a functional part of the car's exterior design.
In stark contrast to the specialized nature of the Pro Spec kit, the TMZDCJK 20 Extendable Windshield Cleaning Tool Kit is built for active maintenance and versatility. This is a comprehensive solution for anyone who struggles to reach high spots on their vehicle or wants to clean multiple glass surfaces without juggling a bucket, a sponge, and a rag. The kit arrives as a complete system, including six washable microfiber pads, an extendable aluminum wand, a spray bottle, and two distinct brushes for detailing air vents and steering wheels. It addresses the common frustration of cleaning a dirty windshield or side mirrors by bringing the cleaning action directly to the glass, no matter how high or awkwardly placed.
The heart of this system is the aluminum extendable cleaning wand. It extends smoothly from 12.8 inches to 18.9 inches without requiring disassembly, offering a sturdy platform for cleaning. The non-slip handle provides a secure grip, which is essential when applying pressure to remove stubborn grime. What sets this apart from standard dusters is the rotating head that turns 180 degrees. This feature allows users to navigate tight corners and reach difficult angles on the windshield with ease, ensuring no spot is missed. The included 100ml spray bottle keeps your cleaning solution ready to go, eliminating the need to stop and fetch a separate bottle mid-task.
The value proposition here is the inclusion of six reusable microfiber pads. These pads are designed to absorb water strongly and leave no lint or streaks behind, effectively removing dirt, dust, oil, and stubborn stains without scratching the glass. This makes them a reliable choice for repeated use over many months. Furthermore, the kit is not limited to just the car. It is versatile enough for home use, tackling hard-to-reach windows, TV screens, and mirrors. It is also compact and portable, making it easy to store in a glove box or trunk for daily commutes or long trips. This product is for the practical owner who wants one tool to handle all their cleaning needs, whether they are washing the car after a muddy off-road drive or cleaning up a dusty garage.
• Best for Permanent Modification → Pro Spec Imports, as it is a structural part designed to stay on the vehicle and block elements indefinitely.
• Best for Active Cleaning → TMZDCJK 20, because it includes a full suite of tools (spray, brush, pads) designed for immediate surface cleaning.
• Best for Specific Compatibility → Pro Spec Imports, but only if you have a Mazda RX7 FC or FD3S with the correct hole size.
• Best for General Versatility → TMZDCJK 20, as it works on cars, homes, and various surfaces like mirrors and dashboards.
• Best for Material Durability → Pro Spec Imports, featuring 6061-T6 aluminum and hard anodized coating for long-term weather resistance.
• Best for Reach and Ergonomics → TMZDCJK 20, with its extendable wand reaching up to 18.9 inches and rotating heads for difficult angles.
• Best for Weatherproofing → Pro Spec Imports, engineered specifically with Neoprene seals to keep water and dust out of the cabin.
• Best for Multi-Surface Detailing → TMZDCJK 20, which includes dedicated brushes for air vents and steering wheels alongside the main cleaning wand.
After weighing the specifications and intended uses of both items, I would buy the Pro Spec Imports kit if I owned a Mazda RX7. The precision engineering, the billet aluminum construction, and the promise of a watertight seal represent a significant upgrade in quality over generic alternatives. It transforms a necessary repair into a refined aesthetic detail. However, for the average driver or truck owner looking to keep their vehicle clean and free of streaks, the TMZDCJK 20 is the far more practical investment. It offers immediate utility, covers multiple cleaning scenarios, and saves the hassle of buying individual components. For truck owners who need to maintain visibility and cleanliness on large glass surfaces, the TMZDCJK 20 provides the reach and tools necessary to get the job done right. In my opinion, the choice ultimately comes down to whether you are modifying your car or maintaining it.
Yes, the manufacturer states that thorough testing confirms the kit is completely watertight, relying on a large flat Neoprene rubber seal and precision machining tolerances to keep dust and moisture out.
The kit includes one extendable aluminum wand, six washable microfiber pads, one 100ml spray bottle, one dual-head air vent brush, and one car detail brush for consoles and steering wheels.
Absolutely. The extendable wand reaches up to 18.9 inches, and the rotating head allows you to clean large surfaces and tough corners on trucks, SUVs, and other vehicles with ease.
No, it is exclusively designed for the Mazda RX7 FC (1985–1992) and FD3S (1992–2002) models with a wiper hole size between 0.86 inches and 1.42 inches.
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