ACT 13-20 Scion FR-S/Subaru BRZ HD/Perf Street Sprung Clutch Kit
ACT SB13-HDSS is the Heavy Duty street clutch for the first-generation Subaru BRZ, Scion FR-S and Toyota 86 with the 2.0L FA20 and six-speed manual, packed without a flywheel. It suits the owner who already runs an ACT XACT Streetlite flywheel and needs a fresh disc and pressure plate, or whose stock clutch now slips in third and fourth after a tune, headers or a mild boost kit, judders on takeoff, or has an engagement point creeping up the pedal.
The FA20 boxer drives a single dry clutch into the six-speed, and the factory disc has little reserve once power goes up. SB13-HDSS swaps in ACT's SB024 Heavy Duty pressure plate, whose diaphragm adds clamp load and reduces deflection, and the 3000506 Performance Street disc: a full-face organic lining with high copper content on a steel backing, mounted on a sprung hub. ACT rates the pair at 259 ft-lb at the crank, 59 percent over the original clutch, on a 9 in (228 mm) disc with a 1 in input shaft. That is plenty for a naturally aspirated car and many mild forced-induction builds that are driven daily.
Because the friction material is organic and the hub is sprung, it engages much like stock. ACT describes the feel as light to moderate pedal effort with smooth, positive engagement and OE to mild gear rattle, and its FAQ expects Heavy Duty plates to raise pedal effort by roughly 15 to 40 percent.
The kit also carries 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 15.1 lb, which tells you there is no flywheel inside.
Rule out the hydraulics first: a low or dark reservoir, a soft pedal, or a leaking slave can stop the clutch from fully engaging or releasing. Check for oil at the bellhousing weep area, since a rear main or input seal leak will contaminate any new disc. Then do a low-rpm, full-load pull in fourth and watch the tach against the speedometer. Our slipping diagnosis guide walks through the road test, and flare versus slip helps separate a worn clutch from a slow, sloppy shift.
Our listing covers 2013-2020. ACT's application chart lists SB13-HDSS for the 2013-2016 Scion FR-S, the 2013-2020 Subaru BRZ including the Limited, Premium, Sport-tech, tS and special editions, and the 2017-2020 Toyota 86, which is the FR-S renamed. The 2022-and-later BRZ and GR86 use the 2.4L FA24 and are a different application.
The flywheel is the point to check. ACT lists the flywheel type for this kit as Streetlite and offers its 600480 XACT Streetlite as the companion part. The sister SB7-HDSS ships this same plate and disc with that flywheel, and ACT describes it as a conversion kit where the Streetlite must be used. If your car still has the factory flywheel, buy SB7-HDSS or the Prolite version SB8-HDSS instead. Not sure what is in your car? Send us your year, VIN and any flywheel markings and we will check it. More FA20 parts are in our rebuild kits collection.
Running more boost than this kit is rated for? The SB13-HDG6 pairs the same plate with a six-pad ceramic disc rated at 394 ft-lb.
| Brand | ACT |
| Part number | SB13-HDSS |
| Fits | ACT 13-20 Scion FR-S/Subaru BRZ HD/Perf Street Sprung Clutch Kit |
| Vehicle fitment | Scion Fr-S/Subaru Brz Hd/Perf (2013-2020) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. It contains the SB024 pressure plate, 3000506 sprung organic disc, RB004 release bearing, PB1004 pilot bearing, AT90 alignment tool and pressure plate bolts. ACT lists the flywheel type as Streetlite and sells the 600480 Streetlite separately.
ACT pairs this clutch with its Streetlite flywheel, and the version that includes that flywheel (SB7-HDSS) is described as a conversion kit where the Streetlite must be used. If you still have the factory flywheel, choose SB7-HDSS or SB8-HDSS.
No. ACT lists it for the 2013-2016 FR-S, 2013-2020 BRZ and 2017-2020 Toyota 86 with the 2.0L FA20. The second-generation cars use the 2.4L FA24.
ACT rates SB13-HDSS at 259 ft-lb measured at the crank, 59 percent more than the factory clutch.
Somewhat. ACT expects its Heavy Duty pressure plates to raise pedal effort by roughly 15 to 40 percent depending on the car, with smooth engagement similar to stock.
Drive 300 to 500 miles of mild, stop-and-go engagement before hard launches or track use, and avoid overheating it during that period.
