1-480-966-3040 Mon-Fri 8am to 5pm AZ
Performance & Aftermarket Car Parts - Vivid Racing Performance & Aftermarket Car Parts - Vivid Racing
Live Chat
Hello, Sign in My Account
Sign In
Wishlist
0
My Cart
My Cart $0.00
  See more parts for Mazda Miata
Select the year of your Mazda Miata:
ACT XACT Flywheel Streetlite Mazda Miata 2016-2018 - 600870
ACT XACT Flywheel Streetlite Mazda Miata 2016-2018 - 600870 - Image 3 ACT XACT Flywheel Streetlite Mazda Miata 2016-2018 - 600870 - Image 2 ACT XACT Flywheel Streetlite Mazda Miata 2016-2018 - 600870 - Image 3

If you’re looking to lighten the load on your Mazda Miata, the Advanced Clutch Flywheel Streetlite 600870 is a solid choice. This isn’t just any flywheel; it’s noticeably lighter than the stock option, which means you’ll feel a real difference in how your engine responds. You’ll get quicker acceleration and a bit of that classic gear rattle—just enough to remind you that you’re driving something special.

What’s really cool about this flywheel is how it’s built. It’s made from heat-treated Chromoly steel, which gives it a toughness that can handle the heat of both street driving and drag racing. The one-piece construction means fewer chances for failure, so you won’t have to worry about warped inserts or loose ring gears. Plus, it’s been CNC machined and dynamically balanced, so you can trust it to perform smoothly at high RPMs.

On the technical side, it weighs in at just 12.3 pounds and has an SFI rating of 1.1, which is good news for those of you who like to push your Miata to its limits. The friction surface is recessed and measures 8.8 inches in diameter, making it a solid fit for the internal engine balance of your 2016-2018 Miata. Just keep in mind that this flywheel doesn’t come with mounting hardware, so you’ll need to grab that separately.

If you’re serious about performance, this flywheel is definitely worth considering. It’s designed for both street and race use, so whether you’re cruising around town or hitting the track, you’ll appreciate the improvements in engine response. And the best part? You can resurface it down the line without needing to buy new parts, which is a win for anyone who likes to keep their ride in top shape.

Install Instructions:

Features:

  • Improved engine response and acceleration with a touch of gear rattle
  • Heat-treated forging for strength and durability
  • Induction-hardened ring gears for longevity
  • One-piece construction for efficient heat transfer
  • Recommended for both street and race applications
  • Forged and CNC machined for high RPM reliability

Specifications:

  • Material: Chromoly Steel
  • SFI Rating: 1.1
  • Replaceable Friction Surface: No
  • Engine Balance: Internal
  • Friction Surface Configuration: Recessed
  • Type: Streetlite
  • Mounting Hardware Included: No
  • Grade Type: Performance
  • Mounting Hole Quantity: 6
  • Weight: 12.3 LB
  • Tooth Quantity: 112
  • Friction Surface Diameter: 8.8 in

Fits: Mazda Miata 2016-2018

Other Part Numbers:
ACT #act600870

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
2016-2018
 Mazda Miata

ACT Banner

ACT ? Advanced Clutch Technology | Clutch Kits & Flywheels Built to Handle Real Power

If you've added boost, tuned for more power, or simply want better throttle control, then your stock clutch won't cut it. That?s where ACT (Advanced Clutch Technology) comes in delivering high-performance clutch kits and flywheels designed for real drivers who push their builds on the street, strip, or track.

ACT?s lineup includes everything from daily driver friendly HD kits to hardcore twin disc setups for serious horsepower. Whether you?re launching hard in a WRX, drifting in a 370Z, or canyon carving in an M3, ACT gives you the torque capacity and engagement you need without sacrificing drivability.

Why ACT? Because Power Without Control Is Useless.
  • Hold More Power Engineered to handle turbo, supercharger, and high-compression builds
  • Faster Engagement Stronger pressure plates for better bite off the line
  • Better Pedal Feel Balanced response without going full race-car stiff
  • Reduced Rotational Mass Lightweight flywheels improve rev-matching and response
  • No Guesswork Direct-fit applications, no fabbing, no hassle
ACT Clutch Kits and Flywheels Fit the Cars Enthusiasts Build

ACT doesn?t just make universal performance parts ? they build complete, vehicle-specific clutch solutions for enthusiast favorites. Whether you daily a Civic Type R, track a Subaru STI, drift a 240SX, or drag a Mustang GT, ACT offers the right clutch to match your build goals.

Top supported platforms include the Nissan 350Z/370Z, Toyota Supra A90, Chevy Camaro SS/ZL1, Mitsubishi Evo, Ford Focus RS/ST, and BMW M3/M4 ? each with clutch options tuned to your driving needs.

What ACT Offers:
  • Performance Clutch Kits From HD street kits to twin-disc race systems
  • Clutch Discs 6-puck, full-face, rigid or sprung to match your style
  • Pressure Plates Heavy-duty options that increase clamp load without sacrificing control
  • Chromoly Lightweight Flywheels Quicker revs, smoother shifts, and less drivetrain stress
  • Complete Hardware Kits Everything you need for a proper install
Performance Tested. Driver Approved.

ACT isn?t hype ? it?s proven. Their clutches are SFI-certified, track-tested, and used by racers in drag, time attack, autocross, drift, and rally. But what really matters? They hold power, last longer, and feel right even after hundreds of hard launches or hours of canyon carving.

Whether you're upgrading for more power or replacing a tired OEM clutch, ACT gives you the bite, strength, and feel to drive harder with confidence. No compromises, no excuses just parts that work when it matters.

ACT warrants all products to be free of defects in materials and workmanship for normal use and service for a period of one (1) year from retail purchase. Written notice must be immediately given to ACT within the warranty period. We require a copy of the purchase receipt showing the unit was purchased from an Authorized Dealer or Advanced Clutch Technology directly to verify the product is under warranty. Products purchased used do not carry a warranty. This warranty is to the original purchaser and is non-transferable. All non-warranty items are subject to a $50 inspection bench test fee.

ACT reserves the right to examine any part returned for warranty claim to determine, to ACT's satisfaction, whether the material or workmanship of the part does not conform to this limited warranty. ACT's obligation under this warranty shall be limited to repairing, replacing, or crediting, at its option, any part which is deemed covered by ACT. No labor, lift or storage charges will be reimbursed for any reason. Damage to ACT's parts resulting from misuse, improper use, or abuse shall void this limited warranty. Failure to follow ACT's installation instructions and the vehicle manufacturers installation procedures and specifications shall void this limited warranty.

ACT undertakes no responsibility for the quality of the goods except as otherwise provided in this contract. ACT assumes no responsibility that the goods will be fit for any particular purpose for which you may be buying these goods, except as otherwise provided in the contract. ACT shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part subject to this warranty.

Check out these other great products