Competition Clutch 8090-ST Clutch Kit and Flywheel (Stage 2) - K-series
SKU: 87673879510

Competition Clutch 8090-ST Clutch Kit and Flywheel (Stage 2) - K-series

Sale price$371.25 Regular price$412.50
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Description

Competition Clutch 8090-ST Clutch Kit and Flywheel (Stage 2) - K-seriesCompetition Clutch's new clutch kit with flywheel for the Honda K Series engines provides an increase in horsepower holding capacity with excellent drivability characteristics. Tuned for maximum drivability without any ECU reprogramming, this kit retains emission compliance specifications. The new clutch kit provides the ideal balance of sport driving and daily driving clutch use. Many new features are responsible for these positive attributes. The

Competition Clutch's new clutch kit with flywheel for the Honda K-Series engines provides an increase in horsepower holding capacity with excellent drivability characteristics. Tuned for maximum drivability without any ECU reprogramming, this kit retains emission compliance specifications. The new clutch kit provides the ideal balance of sport driving and daily driving clutch use.

Many new features are responsible for these positive attributes. The disc size has been increased from 212mm to 230mm and the plate load increased from 1700 to 2200 lbf. The redesigned release bearing provides a consistent pedal feel and smooth load transfer between engagements. The new steel flywheel design works in harmony with the factory ECU and avoids disabling the misfire detection. The weight of the flywheel has been optimized to 16lbs for a smoother shifting feel. All clutch kits are provided with an alignment tool, pilot bushing and throw-out bearing.

Competition Clutch offers a double diaphragm pressure plate on some applications. Look for -X extension on part numbers. Double diaphragm increases holding power and pedal pressure by staking two diaphragms on top of each other, and is not suitable for street applications

Competition Clutch provides the most economical racing clutch for the active sport compact enthusiast and is the preferred assembly for the professional racer.

This Stage 2 Street Series Clutch Kit (8090-ST-2100) provides up to 80% increase in torque capacity and is properly suited for aggressive street use and moderate track use. The Brass Plus material with its alloy backing matched to a performance pressure plate will provide smooth engagement and extended life. 500 mile break-in highly recommended with this set-up. 300 mile break-in REQUIRED with this set-up. The 2100 Series kit includes a performance pressure plate, a high torque sprung disc with anti-burst steel backed Brass Plus facings, all applicable bearings, appropriate alignment tool, and 16lbs Flywheel.

Vehicle applications: 02-05 Civic Si, 06-11 Civic Si, 02-06 RSX base + Type-S, 04-08 TSX

Images used for illustration purposes only.

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 87673879510

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Tessy
Phoenix, US
★★★★★ 1
Burned my already sensitive feet, too big
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
Feels icky, and the heat gets trapped and literally felt like my feet were being burned by these. The bottoms of these feel prickly and they are way too big. You have to sit still and cannot walk in them.
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Reviewed in the United States on April 22, 2026
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Ms. Mac
Belleville, US
★★★★★ 5
Just as good as paraffin wax
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I might prefer these socks over paraffin wax. They are comfy and very moisturizing. I use these socks once a week to keep the heels and soles of my feet moisturized between pedicures. I rinse with warm, soapy water then hang to dry. They are hard to walk in, but there's a saying printed in the socks that's says something to the effect of "take a break, stay off your feet" lol I love that as a reminder to put my feet up and relax
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Reviewed in the United States on April 9, 2026
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SKI
New York, US
★★★★★ 5
Love these!
Color: Pink & Beige, Size: Small(fits up to size 7)
Love these! As I write this review, I’m sitting in my recliner with these on. I have had other silicone socks in the past and would like to share a few of the things that I have learned. These fit great! The others were 2-3 sizes too big because you could not order a size. I wear a size 7 women’s shoe. I got the smaller size. I walked around my apartment in my old ones and they got kinda yucky. Now, I sit in my recliner, put them on and chill for a few hours. I now take them off and put in a ziplock bag so they stay nice and clean (no cat hair!). I use them once a week usually on Saturday or Sunday as I’m a working girl. Also, I use Auqaphor before I put them on and put cotton socks on after I’m finished. Your feet will be SO soft. This is not a one and done…I do this every week especially during sandal season! I know this was lengthy and I hope you got some tips.
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Reviewed in the United States on April 25, 2026
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Ripped Off
Lowell, US
★★★★★ 5
Great quality!
Size: 10-11, Color: Jacquard Knit Red/Black
Just the best! Comfy! Warm! Great non-slip bottoms! Husbands second pair and will order again!
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Reviewed in the United States on May 15, 2026
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Thomas Clendening
Massapequa, US
★★★★★ 5
Best Muclucs I've every owned....GREAT PRICE!
These things are so comfortable and warm. I sleep with them on because I like to have my feet out of the covers. Not too warm...just right. Great quality and fit with a non-slip leather-like sole. I'll keep ordering these ahead of time to make sure I'll always have a fresh pair when I wear them out. I wear them EVERY NIGHT and keep them on all morning. Life-changer! The BEST EVER!!
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Reviewed in the United States on March 4, 2026

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