SKU: 75756525250

WISECO PISTON ACURA INTEGRA GSR B18C 81.5mm 12.5:1 CR - K593M815AP

$349.65 $388.50
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Description

WISECO PISTON ACURA INTEGRA GSR B18C 81.5mm 12.5:1 CR - K593M815APWiseco is world renowned for their work building race winning pistons for sport compact engines featuring small bores, multi valves and high RPM applications for many years. Wiseco utilizes experience acquired from a diverse background of the most sophisticated engines in such venues as Formula1, Indy Racing League (IRL), NHRA Pro Stock Bike, AMA Superbike, and AMA Motocross to design and manufacture the highest technology Sport Compact piston

Wiseco is world renowned for their work building race winning pistons for sport compact engines featuring small bores, multi-valves and high RPM applications for many years. Wiseco utilizes experience acquired from a diverse background of the most sophisticated engines in such venues as Formula1, Indy Racing League (IRL), NHRA Pro Stock Bike, AMA Superbike, and AMA Motocross to design and manufacture the highest technology Sport Compact piston available.

Wiseco's complex piston skirt profiles that reduce power robbing friction, yet promote stability in bore for optimum ring seal. Wiseco has added skirt coatings to the long list of standard features on shelf stock Sport Compact pistons!

Wiseco's world class forging facility that utilizes the latest technologies featuring complex forging shapes, advanced materials and features aligned grain flow technology.

Wiseco Acura Integra/Honda Civic Sport Compact Pistons. Wiseco Sport Compact Pistons K593M815AP for a

  • Acura Integra GS/LS/RS 90-01
  • Acura Integra GSR 92-93
  • Acura Integra GSR 94-01
  • Honda Civic Si 99-00 

B16A (Must use at least .040'' thick gasket) - 81.5mm Bore | 11.5 Comp. Ratio
B17A1 - 81.5mm Bore | 11.8 - 12 Comp. Ratio
B18A1/B1 - 81.5mm Bore | 11.8 - 12.4 Comp. Ratio
B18A1/B1 with B16A VTEC Head - 81.5mm Bore | 12.8 - 13.0 Comp. Ratio
B18C - 81.5mm Bore | 12.5 - 13.2 Comp. Ratio.

Wiseco sport compact pistons are forged and machined in-house and receive a full compliment of power enhancing features. Light weight forgings, millimeter ring packs, extra-strength forgings, gas ports, skirt coatings, offset pins, and a variety of other features are available to insure each engine exceeds our customer’s expectations. Optimized skirt profiles minimize rock and provide long skirt life in stroker applications. 

All machining is done on the newest CNC equipment to insure the tightest tolerances in the industry. Our Wiseco sport compact pistons are top of the line performance parts, built for the demanding consumer that wants nothing but the best. Some of our sport compact pistons are even matched with high quality NPR Steel nitrided rings with napier style 2nd rings.

Below are just some of the popular features found in our forged piston product lines:

  • Valve pocket designs allow maximum flow around the valve, allowing the use of oversized valves and high lift cams.
  • Piston crown shapes are designed to promote the maximum intake charge efficiency through a scavenging mixture ‘Cross Flow’ during intake and exhaust valve overlap. More fuel and air equals more horsepower.
  • Piston domes are designed for optimal quench during the compression/ combustion cycle, resulting in resistance to detonation and pre-ignition. The end product is longer engine life and increased horsepower potential.
  • Precision machined ring grooves with proper orifice/ accumulator volume feature calculated groove root diameters and axial widths, providing excellent surface finish and flatness, maximum ring seal, and minimized blow-by and oil consumption.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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: 75756525250

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4.3 ★★★★★
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Product Reviews
D
Verified Purchase
David
Lake Worth, US
★★★★★ 4
Works great but the angle for the bracket screws seems hard for me
The AMADA HOMEFURNISHING Floating Shelves are a great addition to any home decor. They are easy to install and come with all necessary hardware included. The shelves are made of solid Paulownia wood and have industrial triangle metal brackets that give them a rustic and contemporary style, which is perfect for any design style. One of the best features of these shelves is their size. With a width of 16.4 inches, they are wider and longer than regular shelves, providing more room for storage. The set includes three shelves of different sizes: large (16.4 × 5.9 × 0.7 inches), medium (14 × 5.9 × 0.7 inches), and small (11.4 × 5.9 × 0.7 inches). The shelves are sturdy enough to hold up to 40lbs, making them perfect for organizing books, collectibles, plants, and trophies on the wall without occupying floor space. The shelves are available in six different colors, including Grey, Rustic Brown, Black, Brown, White, and Wood, so you can choose the one that best fits your decor. Overall, these floating shelves are a great value for the price. They are easy to install, sturdy, and add a stylish touch to any room. If you're looking for a way to organize and decorate your home, the AMADA HOMEFURNISHING Floating Shelves are a great choice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2023
I
Verified Purchase
IdahoMel
Pawtucket, US
★★★★★ 5
Great
Great little shelves, easy to put together, very sturdy.
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Reviewed in the United States on March 8, 2026
A
Verified Purchase
Andrew
Pawtucket, US
★★★★★ 5
Good shelves!
Easy enough to assemble and as shown in the pictures you can shape the shelves how you want them. There is one screw hole in the mounting bracket right in the narrow part which makes it difficult to get a screw into. To get around this I just put a screw in at an angle. The quality is decent and I would not overload these by any means. However, if you are looking for cheaper shelves that look decent for light items these will work great.
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Reviewed in the United States on July 10, 2025
J
Verified Purchase
Jan
San Leandro, US
★★★★★ 3
Great shelves for the price (~$15), but could be better.
Unlike many others here reviewing the item, I took note of the dimensions & the rough surface of the wood *before* purchasing it & read the instructions that tells you how NOT to assemble it. So my review won't be mentioning how it was smaller than I expected, how unexpectedly rough the wood was, or the fact that it fell off my wall because I didn't read the instructions. About how NOT to install it- never screw into the board such that the weight is relying on the *screws* to keep it up. Whichever way you place the brackets in relation to the wood, above or below, make sure the weight is ON THE BRACKETS. In other words, *never* screw in from THE TOP OF the shelf. The instructions specifically point this out, so if you see any reviews about the screws stripping out of the wood and the thing crashing to the floor-- they didn't read the instructions and they assembled it incorrectly. And no, unlike what some reviews here are telling you, it is not painted plastic. It is wood. I sanded it, it's wood. They tell you that in the description of the item, too. Paulownia, but yes, the weight of it reminds you of styrofoam, which isn't a bad thing. Ive read its a sturdy wood, relative to how much it weighs. I was already expecting rough boards when I bought it, but on top of that fact the surface had the grossest hand-feel I've ever felt (probably from the surface + the paint they used) that I ended up lightly sanding it with 120 grit (which helped a ton with the feel while also doing very little to the painted surface) and painted it with some white paint that we had on hand (it was originally grey). Much better. The brackets getting in the way of screwing is awful because I don't have a 90° angle screwdriver, but it worked out alright enough. The resulting angle wasn't severe by any means, but still I recommend making sure you have a 90° angle screwdriver before purchasing because I'd much rather it be nice, clean, flush screws. One point of serious suggestion for the seller would be that the brackets need more than a quick dot of welding. Even though my brackets came relatively even and all with unbroken welding, judging from other reviews and looking at mine, this is an area that could definitely do with some improvement. Another suggestion for the seller would be to include a few extra drywall anchors. I ended up breaking three of them trying to get them in my drywall and now I have to go find some replacements. I think our drywall is about as petrified as our studs because in looking up external sources for the best method of installing these types of anchors (to make sure I wouldn't break any. smh) they recommend to NOT predrill, as these are made with no predrilling in mind. However, when trying to initially gently hammer them in with my rubber mallet as the instructions stated, they just weren't penetrating the drywall very far and I even made sure to pierce the paint layer (which is recommended if your walls have a thick layer of paint from over the years). I actually ended up quite extensively drilling in order to get the first portion of the anchors (before the threads) into the wall without doing too much damage to the anchors. Ive gotten two of the three shelves up but can't get the last one up until I get more drywall anchors. So far so good. Lightly hand sanded and a couple coats of paint slapped on them and I quite like them. Definitely takes a lot of time installing them though, so expect that before going into it. Rated 3 stars for the gross hand-feel, the brackets needing more welding, the brackets that could've been more even with each other, the lack of warning that you'd need a 90° angle screwdriver, and the lack of backup drywall anchors.
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Reviewed in the United States on November 1, 2023
A
Verified Purchase
Amazon Customer
Phoenix, US
★★★★★ 5
WOULD buy again!!
Color: Dark Brown
VERY STURDY! Id buy them again. Easy to clean & hang on the wall. Look good hanging up. Weight capacity is more then i thought it would be.
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Reviewed in the United States on January 16, 2026

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