Does the Super Manifold GT-SPEC for ZN8 fit the ZD8 BRZ?

Yes, according to HKS Japan, which lists part 33005-AT010 for both the ZN8 GR86 and the ZD8 BRZ with the FA24. The HKS USA fitment record shows the GR86 only, and the HKS USA product name covers both cars, so BRZ owners may want to confirm with Bulletproof Automotive first.

Not according to HKS, which does not list a tuning requirement for part 33005-AT010, and no engine management is included. The manifold uses the factory O2 and A/F sensor mounting positions. Owners who plan to tune the FA24 anyway should talk to their tuner before installation.

How much power does it add?

HKS tested it together with the Hi-Power SPEC-L II exhaust. Against a stock GR86, the pair gained up to 13.7hp and 16.6lb-ft at 4,300rpm, about 11 percent, and raised peak power by 3.6hp. HKS does not publish a figure for the Super Manifold GT-SPEC for ZN8 on its own.

What does the metal catalyst do?

HKS uses a low-density metal catalyst with 150 cells per square inch, against 600 for the factory ceramic unit, which HKS says drastically lowers exhaust resistance. HKS optimized the blend of precious metals so it still meets the 2018 Japanese emissions rules, and a third-party organization certified the result.

Is it legal for road use in the United States?

Not as certified by HKS. The third-party certification covers the 2018 Japanese emissions rules only, and HKS has published no US certification or CARB Executive Order number for part 33005-AT010, so the buyer must confirm road legality locally and treat the part as intended for off-road or competition use.

Description

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Description

HKS Sport Cat Super Manifold GT-SPEC for ZN8 Toyota GR86 and ZD8 Subaru BRZ

HKS’s Sport Cat Super Manifold GT-SPEC for ZN8 Toyota GR86 and ZD8 Subaru BRZ is a 4-2-1 equal-length manifold for the FA24 with a low-density HKS metal catalyst built in, at 150 cells per square inch against 600 for the factory ceramic catalyst. HKS says it drastically lowers exhaust resistance while still meeting the 2018 Japanese emissions rules, with third-party certification. Paired with the HKS Hi-Power SPEC-L II on the HKS dyno, it gained up to 13.7hp and 16.6lb-ft at 4,300rpm over a stock car.

Development and Testing

HKS studied the four-pipe section closely to reach a fully equal-length 4-2-1 layout, and redesigned the head flange around the stepped section where each pipe is inserted. Tested with the Hi-Power SPEC-L II, the Super Manifold GT-SPEC for ZN8 cars improved output across the rev range, most of all in the mid range, and largely removed the torque dip around 4,000rpm.

Features

Fully equal-length 4-2-1 layout
Low-density HKS metal catalyst at 150 cells per square inch
Catalyst certified by a third party to the 2018 Japanese emissions rules
Redesigned cylinder head flange
Uses the factory O2 and A/F sensor mounting positions

Specifications

Pipe Diameter: 42.7mm to 50.8mm to 60mm
Layout: 4-2-1 equal length
Catalyst: HKS metal, 150 cells per square inch against 600 for the factory catalyst
Largest Gain, HKS Test: 13.7hp and 16.6lb-ft at 4,300rpm, with the Hi-Power SPEC-L II
Peak Power Gain, HKS Test: 3.6hp, with the Hi-Power SPEC-L II
Certification: Exhaust gas test certificate, Japan

Applications

Subaru BRZ: ZD8 | 2022-present | FA24
Toyota GR86: ZN8 | 2022-present | FA24

Notes

No engine management is included, and HKS does not list a tuning requirement for this part
HKS Japan lists the part for the ZD8 BRZ as well as the ZN8 GR86, while the HKS USA fitment record shows the GR86 only
Power figures are HKS in-house results on a GR86 fitted with the HKS Hi-Power SPEC-L II, part 32016-AF101, and vary with the car and dyno
This manifold is intended for off-road or competition use where emissions laws apply; its certification applies in Japan only, no CARB Executive Order number is published, and the buyer is responsible for checking local regulations

Frequently Asked Questions

Does the Super Manifold GT-SPEC for ZN8 fit the ZD8 BRZ? Yes, according to HKS Japan, which lists part 33005-AT010 for both the ZN8 GR86 and the ZD8 BRZ with the FA24. The HKS USA fitment record shows the GR86 only, and the HKS USA product name covers both cars, so BRZ owners may want to confirm with Bulletproof Automotive first.
Does it need a tune? Not according to HKS, which does not list a tuning requirement for part 33005-AT010, and no engine management is included. The manifold uses the factory O2 and A/F sensor mounting positions. Owners who plan to tune the FA24 anyway should talk to their tuner before installation.
How much power does it add? HKS tested it together with the Hi-Power SPEC-L II exhaust. Against a stock GR86, the pair gained up to 13.7hp and 16.6lb-ft at 4,300rpm, about 11 percent, and raised peak power by 3.6hp. HKS does not publish a figure for the Super Manifold GT-SPEC for ZN8 on its own.
What does the metal catalyst do? HKS uses a low-density metal catalyst with 150 cells per square inch, against 600 for the factory ceramic unit, which HKS says drastically lowers exhaust resistance. HKS optimized the blend of precious metals so it still meets the 2018 Japanese emissions rules, and a third-party organization certified the result.
Is it legal for road use in the United States? Not as certified by HKS. The third-party certification covers the 2018 Japanese emissions rules only, and HKS has published no US certification or CARB Executive Order number for part 33005-AT010, so the buyer must confirm road legality locally and treat the part as intended for off-road or competition use.

About HKS

HKS is a Japanese performance engineering brand founded in 1973 and headquartered in Fujinomiya, Shizuoka, with a long-standing reputation for developing high-quality aftermarket parts and motorsport-proven technology for enthusiast and professional applications. Known for innovations in turbocharging and engine performance, HKS produces a broad range of components including exhaust systems, turbo kits, electronics / engine management, and suspension solutions, with product development heavily influenced by decades of involvement in racing disciplines such as circuit time attack, drag, and drifting.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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HKS Sport Cat Super Manifold GT-SPEC for ZN8 Toyota GR86 and ZD8 Subaru BRZ [33005-AT010]

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HKS Sport Cat Super Manifold GT-SPEC for ZN8 Toyota GR86 and ZD8 Subaru BRZ

Development and Testing

Features

Specifications

Applications

Notes

Frequently Asked Questions

About HKS

Reviews