Supertech Inconel Exhaust Valves (Set of 8) – Subaru FA20 / Toyota 86 / BRZ / FR-S
Fits: Subaru FA20 engines – Toyota 86 / GT86 (ZN6, 2012–2021), Subaru BRZ (ZC6, 2012–2020) and Scion FR-S. Standard head size. Fitment on the FA24 (GR86 / 2022+ BRZ) isn't confirmed, so contact us before ordering for those.
Supertech Inconel exhaust valves are made for extreme heat. Inconel holds its strength at the high exhaust temperatures seen in turbo and high-boost FA20 builds, where a factory valve is at risk. A common upgrade during a head rebuild alongside upgraded springs and guides.
| Brand | Supertech |
| Part number | SEVI-1050-8 |
| Material | Inconel |
| Head diameter | 29.00mm (standard) |
| Stem diameter | 5.45mm |
| Length | 95.15mm |
| Quantity | Set of 8 |
Also needed: fitting and lapping by a qualified engine machinist. Check valve-to-guide clearance and confirm dimensions against your head before fitting. Pair with the Supertech intake valves, GSC exhaust valve guides and GSC dual valve springs.
Usually dispatched within 5-14 business days. Fitment advice available. Contact us before ordering.
FAQ
Why Inconel for the exhaust side?
Exhaust valves run much hotter than intakes, especially on boost. Inconel keeps its strength at high temperatures.
Are these standard size?
Yes. They have a standard 29mm head, so they suit a standard head without oversize seat work.
Do I need new guides and springs?
On a head rebuild it's recommended. See the GSC guides and spring kit linked above.
Part numbers
Shipping (Australia & international)
Fitment guarantee
Returns
Warranty
Bundle and save
Stage packages for your Toyota 86 / Subaru BRZ (FA20)
Every part for each stage in one cart, for less than buying them separately.Tap a stage to see exactly what is included.
Stage 1
Turbo Kit + Clutch
$8,643Save $455
Stage 2
Turbo Kit + Clutch & Flywheel + Fuel System + Axles
$11,492Save $605
Stage 3
Turbo Kit, Fuel, Clutch, Axles, Forged Short Block
$20,583Save $1,084
Stage 4
Turbo Kit, Fuel, Twin Disc Clutch, Axles, Forged Long Block
$25,333Save $1,334
Not sure which stage suits your build? Email sales@boostedengineering.com.auAll packages
Shipping outside Australia? Tell us where it is going and we will send you the best shipping price for this part. Request a quote
Customer reviews
What our customers say
Boosted Engineering’s turbo kits are next level! The craftsmanship, design and attention to detail are outstanding. From the quality of the welds to the overall fit and finish, everything is exceptionally well engineered. Easily some of the best turbo kits on the market!
Best place for getting your ride tuned. Very helpful and professional will be going back after doing some upgrades down the track
I’m so thankful for the quality work performed on my M2, Ben’s workmanship has been like no other. If you need a turbo kit Boosted Engineering has you covered!
Not sure what fits your car?
Talk to the team about parts and services.