SKU: 36255471221

HW4-SPSS - Sport/Perf Street Sprung

$177.75 $197.50
Save 10%
No.2 Bestseller on so24.fr >

Pay in installments of $49.38 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

HW4-SPSS - Sport/Perf Street SprungSpecifications: Item Description: Sport Perf Street Sprung Product Weight: 10. 4 lbs. Torque Capacity: 195 ft lbs. Torque Capacity Over OE: 28% Disc Material: Organic Clutch Disc Diameter (Inches): 8. 3 inches Clutch Disc Diameter (Millimeters): 212 mm Input Shaft Diameter (inches): 0. 875 inches Pressure Plate Type: Sport Warranty: 12 Months Description: The HW4 SPSS kit features a Sport pressure plate designed for a notable upgrade. ACT Sport

Specifications:

  • Item Description: Sport/Perf Street Sprung
  • Product Weight: 10.4 lbs.
  • Torque Capacity: 195 ft/lbs.
  • Torque Capacity Over OE: 28%
  • Disc Material: Organic
  • Clutch Disc Diameter (Inches): 8.3 inches
  • Clutch Disc Diameter (Millimeters): 212 mm
  • Input Shaft Diameter (inches): 0.875 inches
  • Pressure Plate Type: Sport
  • Warranty: 12 Months

Description:

The HW4-SPSS kit features a Sport pressure plate designed for a notable upgrade. ACT Sport pressure plates utilize an exclusive diaphragm design to enhance clamp load, reduce deflection, and maximize clutch life. Each diaphragm undergoes a rigorous four-stage heat-treating process for unparalleled performance. Precision cover stampings on ACT pressure plates ensure rigidity and consistency. The performance street discs included in this kit are highly popular and feature premium organic materials with high copper content for improved heat transfer and steel-backed lining for greater burst strength and durability. These discs are designed with reduced marcel for faster shift action, perfectly complementing ACT pressure plates. The operation is quiet, with increased strength and reliability.

Description:

  • Feel: Light to moderate pedal effort, smooth engagement, OE to mild gear rattle
  • Life: Longer clutch life achieved through ACT's exclusive diaphragm design
  • Quality: Carefully engineered, precisely assembled, accurately balanced, with premium organic friction materials for heat tolerance and reduced fade
  • Recommended Use: Recommended for street and race use
  • ACT Difference: 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

Vehicle Fitment:

  • Application: Engine
    • 1989 Honda Civic RT 4WD (1.6 L4 GAS FI 1588cc | SOHC | Naturally Aspirated)
    • 1990 Honda Civic RT 4WD (1.6 L4 GAS FI 1588cc | SOHC | Naturally Aspirated)
    • 1991 Honda Civic RT 4WD (1.6 L4 GAS FI 1588cc | SOHC | Naturally Aspirated)

PROP 65 WARNING: This product can expose you to chemicals including carbon black, glass wool fibers, and silica (in clutch discs), chromium, and nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

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: 36255471221

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 10 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
m0sfet
Lowell, US
★★★★★ 5
If you own a diesel engine, use this.
Size: 128 fl. oz, 1 Pack
For diesel owners looking to protect their fuel system, Hot Shot's Secret Everyday Diesel Treatment (EDT) is a heavy hitter in the world of additives. This 1-gallon jug is designed for the long haul, treating up to 1,280 gallons of fuel, which makes it incredibly cost-effective for daily drivers and fleet owners alike. The primary draw here is the 7-point cetane boost, which noticeably smooths out rough idles and improves cold starts. Beyond performance, it serves as a critical insurance policy against modern "dry" Ultra-Low Sulfur Diesel (ULSD) by adding essential lubricity to the fuel pump and injectors. It also features a demulsifier to help separate water from the fuel, preventing corrosion before it starts. While the 1-gallon bottle is bulky and requires a smaller dispenser for easy pouring at the pump, the peace of mind and improved MPG make it a staple for maintaining a healthy engine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
J
Verified Purchase
Jennifer Mazariegos
Draper, US
★★★★★ 4
Great product
Size: 1 Count (Pack of 1)
I use it at every fill up. Works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
D
Verified Purchase
Donna Garrett
Port Orchard, US
★★★★★ 5
TDI Seems To Like This Stuff. A Must For US D2 Fuel.
Size: 1 Count (Pack of 1)
After purchasing our 2012 VW TDI diesel at 140K miles I started researching best practices to keep these little engines happy. What I read was that the US has some of the crappiest quality D2 diesel on the world stage. Even Canada's diesel is higher cetane and lubricity rated than the States not to even mention Europe which has WAY higher standards than us. The weak point of these TDI engines seems to be the high pressure fuel pump (HPFP) that is crank driven to enormous pressure for the injectors to to their thing. If these HPFP parts fail on common rail engines they can literally grenade and throw shards of metal everywhere within the downstream fuel system ensuring a VERY expensive repair if not destroying the engine altogether. The lubricating property of the fuel plays an important part in keeping these pumps working properly. There even seems to be some data supporting Canadian operated TDIs have fewer failure rates of the HPFP than stateside fueled vehicles although nothing had been officially published to my knowledge. Sulpher in the diesel had beneficial lubricating properties but was bad for the environment and subsequently removed from D2 by the EPA much like leaded gasoline of yesteryear. So the second tank I ran in my TDI was Hot Shot's EDT. I can't comment on the comparative difference as I ran this from almost day one. What I like is the claimed increased lubricity and cetane boost that is supposed to bring our crappy D2 up to reasonable levels the rest of the world enjoys. Fuel economy seems fine but playing with a low spun turbo and the subsequent torque is sometimes too irresistible to give fuel economy a fair chance. Besides, I need to blow out all that accumulated carbon :) I like the fact that the Hotshot's EDT seems more concentrated and affordable than the competition. 1oz for a tank is almost a performance treatment for my TDI. It's a negligible cost for a fill up and I hope they keep it that way. My dislike might be the one thing other people love about this product and that's the bottle. The bottle is meant to be squeezed to get the measured amount in the top fill area so measuring is easier. My concern is the filler neck is not long enough to cram into the filler to avoid spilling without a funnel and diesel doesn't do many favors to paint. My workaround was to save the empty bottles from other gasoline treatments and use a syringe to fill 1oz amounts of EDT and place in the trunk of the car in double plastic bags. Seems to work fine although the kitchen was probably not the best place to do this since it doesn't smell like flowers. Next purchase will likely be the bulk bottle. It's kind of a shame we actually need this kind of protection now since the US fuel standards are almost non-existent. Even B1 blended bio diesel would be a huge improvement in lubricity but not available where I live. Thanks Hotshot's...Good stuff!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 31, 2020
S
Verified Purchase
SCOTT
Birmingham, US
★★★★★ 5
Recommended by John. So far great additive for the CP4
Size: 16 Fl Oz (Pack of 2)
I have a ‘22 6.7 Powerstroke w/27k and pull heavy trailers in FLA. I’m worried about the (disco party). John I believe from the Ford Dealer in Hereford, Tx recommended this. I run 2 oz per fill and will see what happens. I’ve got Five fill ups on it now and seems to help responsiveness. Proof will be in the pudding. So far I’m pleased
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
R
Verified Purchase
ReevesRacing
Lake Worth, US
★★★★★ 5
Quieter and more mpg in TDI
Size: 1 Count (Pack of 1)
Didn't really believe the hype. Did a little research and watched Project Farm and decided to try. Im not a snake oil guy....but I will say my 2013 common rail TDI is quieter and I get a tad more fuel mileage. Does it pay for itself? Well, it does get better mpg, but I feel the reduction in noise most likely relates to less wear and tear and thats good enough for me. Im only using 1oz per fill up (about 14 gallons) so it lasts a very long time. I get 40mpg and im not light footed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026

recommand products

Gold Stripe Wine Decanter - Cone
325.00
Traditional Decanter - Clear
132.50
Aubrey Gesso White Six-Light Chandelier
2247.50
Nebula French Black Chandelier
987.50
Églomisé & Gilded Iron Nest of Tables
897.50