ACT 13-20 Scion FR-S/Subaru BRZ HD/Race Sprung 6 Pad Clutch Kit
ACT SB13-HDG6 is the Heavy Duty pressure plate and six-pad sprung ceramic race disc for the first-generation Subaru BRZ, Scion FR-S and Toyota 86, sold without a flywheel. It is the kit FA20 owners pick when they already have a lightweight flywheel, or plan to buy one separately, and the stock clutch has started slipping under a supercharger, turbo kit or heavy track use.
The 2.0L FA20 boxer sends its torque through a single dry clutch into a six-speed manual. Once boost is added, the factory disc is the first part to give up. SB13-HDG6 replaces it with ACT's SB024 Heavy Duty pressure plate, which uses a stiffer diaphragm for more clamp load, and the 6228218-1 race disc: six ceramic pads on a spring-damped hub. ACT rates the combination at 394 ft-lb at the crank, 142 percent over stock, on an 8.8 in (224 mm) disc with a 1 in input shaft.
The box also includes the parts that are easy to forget: an RB004 release bearing, a PB1004 pilot bearing, the AT90 alignment tool and M8-1.25 x 16 mm pressure plate bolts. Shipping weight is about 15.6 lb because there is no flywheel inside.
That is the main thing that separates this kit from the ACT SB7-HDG6, which ships the same plate and disc together with the 600480 XACT Streetlite flywheel. ACT's spec sheet for SB13-HDG6 lists Streetlite as the flywheel type and offers the 600480 as its companion part, so treat this as the clutch half of that pairing.
Be honest about how the car is driven. ACT describes the feel as light to moderate pedal effort, aggressive engagement and OE to mild gear rattle. A six-pad ceramic disc grabs harder than an organic one, so a near-stock daily driver is usually better served by the organic SB13-HDSS street kit.
Do a third-gear pull from about 2,500 rpm at wide-open throttle. If revs jump without the car pulling harder, the disc is slipping. Rule out the hydraulics first: a soft pedal or grinding into gear points to the slave cylinder or air in the line, not the disc. Check the bellhousing seam for oil, since a leaking rear main seal will contaminate a new disc quickly. Our clutch slipping guide covers the full checklist, and clutch chatter causes helps if the complaint is judder rather than slip.
Our listing covers the 2013-2020 Scion FR-S and Subaru BRZ. ACT's application chart lists the 2013-2016 Scion FR-S, the 2013-2020 Subaru BRZ and the 2017-2020 Toyota 86, all with the 2.0L FA20 (1998 cc) and the manual transmission. The FR-S was renamed Toyota 86 for 2017, so a 2017-2020 86 is the same car. It does not fit the 2022-up BRZ or GR86 with the 2.4L FA24. ACT sells several FR-S kits with similar names, so make sure your order reads SB13-HDG6, or send us your year and VIN and we will confirm it. Browse more clutch parts in our rebuild kits and clutch section.
If the transmission is coming out anyway, it is a good time to look at the driveshaft. The DSS carbon fiber one-piece driveshaft is built for this chassis.
| Brand | ACT |
| Part number | SB13-HDG6 |
| Fits | ACT 13-20 Scion FR-S/Subaru BRZ HD/Race Sprung 6 Pad Clutch Kit |
| Vehicle fitment | Scion Fr-S/Subaru Brz Hd/Race Sprung (2013-2020) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. The kit contains the SB024 pressure plate, the 6228218-1 six-pad race disc, the RB004 release bearing, the PB1004 pilot bearing, the AT90 alignment tool and pressure plate bolts. ACT lists the 600480 XACT Streetlite as its flywheel. The SB7-HDG6 is the same clutch with that flywheel included.
No. ACT lists it for the 2.0L FA20 cars only: 2013-2016 Scion FR-S, 2013-2020 Subaru BRZ and 2017-2020 Toyota 86. The second-generation cars use the 2.4L FA24 and a different clutch.
ACT rates the SB13-HDG6 at 394 ft-lb measured at the crank, which it says is 142 percent over the factory clutch.
It works, but engagement is more abrupt than an organic disc and pulling away smoothly takes practice. For a mostly stock car that sees daily traffic, the organic SB13-HDSS is the easier street choice.
The FR-S, BRZ and 86 clutch shares the brake fluid reservoir, so bleed it with fresh DOT 3 or DOT 4 brake fluid after the install.
ACT says its race discs usually need only a few hard slips to lap the surfaces in before normal driving. Avoid overheating the clutch during that time to prevent glazing and hot spots.
