SKU: 80918428136

Porterfield Brake Pads for 1982 MAZDA RX 7 R/Disc

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Description

Porterfield Brake Pads for 1982 MAZDA RX 7 R/DiscPorterfield Brake Pads for 1982 MAZDA RX 7 R Disc Porterfield R4 Porterfield R4 Carbon Kevlar based brake pads were fully designed for heavy duty extreme motorsports use. Its one of the the few true motorsports competition pads available on the market today. The carbon based semi metallic R4 brake material allows the brake pad to absorb huge amounts of heat and dissipate it quickly and evenly over time. The Carbon Kevlar material also allows the brake

Porterfield Brake Pads for 1982 MAZDA RX 7 R/Disc

Porterfield R4

Porterfield R4 Carbon Kevlar based brake pads were fully designed for heavy-duty extreme motorsports use. Its one of the the few true motorsports competition pads available on the market today. The carbon based semi metallic R4 brake material allows the brake pad to absorb huge amounts of heat and dissipate it quickly and evenly over time. The Carbon-Kevlar material also allows the brake pad to heat up to operating temperature right away so little pad warmup is required for optimal operating condition. This compound also requires very little bed-in so that one is able to change out the pads and almost immediately able use them to their full potential.

R4 series provides high initial bite for immediate brake response while yielding extremely consistent modulation and predictability. This is great for all road courses, oval track, rally, vintage racing, autocross, club events, and professional driving events. This is one of the best motorsports pads we have used. Available for many applications, so please contact us if you do not see one for your car.

Porterfield R4-1

The R4-1 Vintage Full Race Compound was developed using knowledge testing in the vintage racing community. Optimum uses for the R4-1, under conditions where very high friction is needed with minimal warm up time and in applications where there is difficulty in maintaining sufficient heat with conventional race pad compounds. Widely used on vintage GT and formula cars the R4-1 is also gaining popularity in off-road and rally-cross classes. Great modulation, consistent pedal feedback and rotor friendly at all temperatures as with all the other Porterfield Carbon Kevlar compounds.

Porterfield R4-E

The R4-E Endurance Race Compound is a carbon kevlar compound made to last a bit longer than the original R-4 compound. The R4-E compound is designed to endure higher prolonged temperature and still has pad life as long or longer than Porterfield R-4 do. This pad is great for club enduro events and applications where temperatures are at their maximum.

Porterfield R4-S

Porterfield R4-S high performance street and autocross brake pads are great for heavy-duty street and light track applications. Compound is perfect for everyday use while still keeping the highly capable track ready performance. The R4-S features a high friction level that will increase your stopping power with minimal pedal effort.

The R4-S series pads are VERY VERY rotor friendly and yield very low levels of dust; levels are far below OEM equipment or any other high performance brake pads. Your car will stop better and your wheels will stay cleaner longer. Good for autocross, rallies, driving school, and of course daily driving with a little extra stopping power. R4-S pads are available for virtually all vehicles sold in the US and custom R4-S pad sizes for competition style calipers are also available.

This is one of the very best all around street/strip brake pads available at a great price.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 80918428136

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4.1 ★★★★★
Based on 17 reviews
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Verified Purchase
J. S. Kline
Lowell, US
★★★★★ 5
Excellent Cabinet for someone good at mounting a cabinet
Color: White, Style: Wall Cabinet
The cabinet arrived very well packaged with an instruction booklet, hardware, and an Allen wrench. The booklet says you will just need a Phillips screwdriver, but you will also need a drill with an appropriate bit (more on the bit later) to mount the cabinet on the wall. Assembling the cabinet was simplified by how well the cabinet pieces and hardware were labeled and referenced in the instruction booklet. The holes in all the cabinet parts lined up nicely. The doors swing on spring loaded pivots. They are not adjustable, but work well and are probably much less expensive than European style hinges. I was concerned that the doors would not line up, but they look fine. The Magnetic Latch also works well, but the little piece of wood that it mounts on fell off during assembly so I glued it back in place. This was the only problem I had assembling the cabinet. I let the glue dry overnight and mounted the cabinet the next day. The wood support plate they ship with the cabinet is a great way to hang a cabinet, however I did have some problems using the supplied anchors. I recommend having some other anchors and screws available in case you have similar issues. Skip this paragraph if you do not care about the details: I mounted the cabinet on drywall. The instructions said to drill 11/32” holes for the supplied plastic wall anchors. I did not have an 11/32” bit so I used a 5/16” bit. Even though my holes were 1/32” smaller than specified, the anchors slid into the drywall very easily without having to tap them. I recommend using a 5/16” bit or even a 9/32” bit instead of the 11/32” they specify. Next I mounted the support plate with the supplied screws, but I could not get the screws tight enough to hold the plate securely in place. It felt like the screws were too small in diameter so I used some slightly larger screws. That worked fine for one of the screws holding the plate and the two lower screws, but the second screw through the plate would not bite and hold the plate firmly. Fortunately I had one HILTI 3/16” hollow wall metal anchor left over from a previous project and was able to get the plate very solidly attached to the wall. My wife is very pleased with the cabinet. I did have some trouble with the latch and the install so I was tempted to knock off a star, but I think this is a 5-Star item considering the low cost and how well the the cabinet parts aligned with each other.
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Reviewed in the United States on January 20, 2025
M
Verified Purchase
Monica G.
West Palm Beach, US
★★★★★ 5
Love and amazing for the price!
Color: White, Style: Wall Cabinet, Color: White, Style: Wall Cabinet
Perfect! I'm a renter and didn't want to spend an arm and a leg on something that might not work in the next place so this looked like it would be a good fit. I really wasn't expecting much for the price point but I was VERY pleasantly surprised. It's a great piece. I love assembling things (I'm an Ikea pro) but this had literally the easiest and most explicit instructions I have ever seen. Every piece is clearly labeled. The hardware comes in a bubble pack, again clearly labeled. Rhe instructions are very clear. Another thing I appreciated was the mounting mechanism which is a French cleat. It is much easier to level and screw in a cleat than to recruit help and try to hold a cabinet in place and try screwing it in. I'm a fat middle age woman and I had no problem mounting it by myself. Notice there are no screws visible on the outside. That was a huge selling point for me. Only con is that for the quality of everything else, the shelves are on the thin side, placing anything substantial would definitely make them bow. Background is a scrap of peel-and-stick.
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Reviewed in the United States on January 28, 2026
K
Verified Purchase
Ken
Belleville, US
★★★★★ 5
Good cabinet choice
Color: White, Style: Wall Cabinet
I needed a wall cabinet for a recessed area above the toilet. This one fits the area perfectly and provides a good amount of storage in an otherwise wasted space. It looks good as it coordinates well with my white shaker style cabinets elsewhere in the room. It was easy to assemble, doors lined up perfectly, and mounting was a breeze with the included screws and hardware. It doesn't get hard use in this location, but seems sturdy after almost a year.
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Reviewed in the United States on August 7, 2025
A
Amazon Customer
Houston, US
★★★★★ 5
Versatile Room Divider With Easy Assembly and Strong Coverage
Size: 3 Panel 12FT W
I picked up this Siebwin 3-panel folding room divider mainly for privacy and room separation, and overall it works very well. Assembly is very straightforward, and the divider can be set up, taken apart, and stored without much effort. The fabric quality feels good, and the frame construction is stronger and more stable than expected. The support tubes especially feel well built and help keep the divider standing securely. One feature I really liked is the flexibility of the design. The panels can be used together as a complete divider or separated depending on the setup and available space. That makes it much more versatile for different room layouts or temporary privacy needs. The coverage is also very good, and the size matches the manufacturer’s description accurately. The fabric blocks light and background visibility well enough to provide solid privacy without feeling overly heavy. The wider feet also help improve stability compared to thinner folding dividers. Another positive detail is that everything arrived complete with no missing parts or damaged pieces, which made assembly much easier and faster. Compared to cheaper privacy screens, this one feels more durable and easier to customize depending on the situation. In terms of value for the money, it feels like a very practical and worthwhile purchase considering the size, flexibility, and build quality. Overall, a versatile and well-built room divider with easy assembly, strong privacy coverage, stable construction, complete included parts, flexible panel configuration, and excellent everyday functionality.
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Reviewed in the United States on May 27, 2026
F
Fred
Fort Morgan, US
★★★★★ 5
Stable, flexible in deployment configuration, creates true privacy and looks great.
Size: 3 Panel 12FT W
This is the second room divider panel I have installed, and there are several features about this one that I like much better than my older one. The fact that there are no gaps and that the material is thicker means you get more privacy or more hiding power, if you wish. My older divider has vertical spaces between each of the panels and the panels are half as wide as the Siebwin panels, so there are many vertical spaces. The Siebwin divider really creates privacy. Another feature that I really appreciate is that the legs are wider and stand off from the floor. On my older one the legs are flat and they're rather awkward to adjust because they create more drag on the floor. The feet on the older one also loosen if you turn them counter clockwise, so adjustments of configuration that require the feet to be moved are more complex. The older divider also must be deployed in a zig-zag fashion because he feet are not as wide, but this new one can be deployed and stable in a straight, an "N" shape or an arc. They are both the same length, but because the older one must be use in a zig-zag deployment it doesn't reach to the length of the new one. The Siebwin divider definitely costs more at $103.48, but it sports several features and advantages over the other brand, so it does a better job and is worth the extra cost.
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Reviewed in the United States on May 25, 2026

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