How is the HKS SPEC-L different from the SPEC-L II?

HKS rates the SPEC-L, part 32016-BT004, as louder than the SPEC-L II, part 32016-AF101, which HKS built to meet Japanese regulations. The SPEC-L finishes in 97mm titanium tips where the SPEC-L II uses 94mm stainless tails, and the two weigh almost the same, at 24.9lb and 25.1lb.

Does the SPEC-L Exhaust for ZN8 also fit the Subaru BRZ?

Yes. HKS lists the SPEC-L Exhaust for ZN8 GR86, part 32016-BT004, for the ZD8 Subaru BRZ as well, from 2022 on. The two cars share the FA24 engine, so one part number covers either badge and there is no separate BRZ version to order.

Does the HKS SPEC-L drone on the highway in a GR86?

HKS tuned the SPEC-L for a bass note under acceleration and says it keeps drone out of the cabin, though it publishes no cruise figure. It lists 88 to 89 dB against 82 dB stock on its close test, and 66 dB against 57 dB at idle, so startup is clearly louder than stock.

Are the SPEC-L tips titanium?

Yes, the tips are. HKS builds the pipes and silencers from ultra-thin SUS304 stainless steel and finishes each round muffler with a 97mm titanium tip. The thin stainless is what brings the system close to titanium weight, and SUS304 resists corrosion well through rain and winter use.

Does the SPEC-L add power or need a tune?

HKS recorded gains of 3hp at peak power and 1.2Nm at peak torque on its dyno. HKS lists no tuning requirement for part 32016-BT004, and the kit includes no engine management, so the FA24 keeps its factory calibration and the exhaust stays on if a tune follows later.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

Reviews

Product Inquiry

Description

HKS Hi-Power SPEC-L Exhaust for ZN8 Toyota GR86 and ZD8 Subaru BRZ

HKS’s Hi-Power SPEC-L Exhaust for ZN8 Toyota GR86 and ZD8 Subaru BRZ is the more vocal of the two dual-exit systems HKS of Fujinomiya offers for the FA24 coupes, voiced for a bass note that builds with revs. HKS forms the pipes and silencers from ultra-thin SUS304 stainless and caps each round muffler with a 97mm titanium tip, bringing the system to 24.9lb (11.3kg) against 35.7lb (16.2kg) for the factory exhaust. It suits the owner who wants the car heard; a calmer cabin calls for the HKS Hi-Power SPEC-L II Exhaust.

Development and Testing

HKS sized the piping for the 2.4L FA24 and proved it on a flow bench, where the system holds far lower back-pressure than the factory exhaust, and on a dyno, where the SPEC-L Exhaust for ZN8 and ZD8 cars gained 3hp at peak power and 1.2Nm at peak torque. HKS treats the lower restriction as headroom for further modifications rather than a large bolt-on gain.

Features

Ultra-thin stainless pipe and silencers bring the weight to a level HKS compares with titanium exhausts
Round mufflers finished with large titanium tips, one per side
Bass-led tone under acceleration, tuned by HKS to keep exhaust drone out of the cabin

Specifications

Main Pipe Diameter: 65mm splitting to twin 50.8mm
Tips: 97mm titanium, left and right
Main Material: SUS304 stainless steel
Weight: 24.9lb (11.3kg), factory system 35.7lb (16.2kg)
Sound Level, Factory System: 82 dB (57 dB at idle)
Sound Level, HKS: 88 to 89 dB (66 dB at idle)

Applications

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

Notes

HKS USA catalogs part 32016-BT004 as the US version of the Hi-Power SPEC-L for the GR86 and BRZ
The single-exit HKS Hi-Power SPEC-L II Cup Exhaust is a separate, lighter race part for the manual GR86
Dyno and flow bench results are HKS in-house figures from a test vehicle HKS does not name, so only the gains are given
This exhaust is intended for off-road or competition use where emissions laws apply, and the buyer is responsible for checking local emissions and noise regulations before installation

Frequently Asked Questions

How is the HKS SPEC-L different from the SPEC-L II? HKS rates the SPEC-L, part 32016-BT004, as louder than the SPEC-L II, part 32016-AF101, which HKS built to meet Japanese regulations. The SPEC-L finishes in 97mm titanium tips where the SPEC-L II uses 94mm stainless tails, and the two weigh almost the same, at 24.9lb and 25.1lb.
Does the SPEC-L Exhaust for ZN8 also fit the Subaru BRZ? Yes. HKS lists the SPEC-L Exhaust for ZN8 GR86, part 32016-BT004, for the ZD8 Subaru BRZ as well, from 2022 on. The two cars share the FA24 engine, so one part number covers either badge and there is no separate BRZ version to order.
Does the HKS SPEC-L drone on the highway in a GR86? HKS tuned the SPEC-L for a bass note under acceleration and says it keeps drone out of the cabin, though it publishes no cruise figure. It lists 88 to 89 dB against 82 dB stock on its close test, and 66 dB against 57 dB at idle, so startup is clearly louder than stock.
Are the SPEC-L tips titanium? Yes, the tips are. HKS builds the pipes and silencers from ultra-thin SUS304 stainless steel and finishes each round muffler with a 97mm titanium tip. The thin stainless is what brings the system close to titanium weight, and SUS304 resists corrosion well through rain and winter use.
Does the SPEC-L add power or need a tune? HKS recorded gains of 3hp at peak power and 1.2Nm at peak torque on its dyno. HKS lists no tuning requirement for part 32016-BT004, and the kit includes no engine management, so the FA24 keeps its factory calibration and the exhaust stays on if a tune follows later.

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.

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Product Inquiry

First Name (*required)

Last Name (*required)

Your E-Mail (*required)

Telephone Number (*required)

Country (*required)

Vehicle Year / Make / Model (*required)

Please Explain What do you want to do with your vehicle

Additional Information (optional)

I agree to the terms & conditions and privacy policy and to have Bulletproof Automotive LLC contact me for promotion, marketing and other purposes via email, phone or SMS message.

HKS Hi-Power SPEC-L Exhaust for ZN8 Toyota GR86 and ZD8 Subaru BRZ [32016-BT004]

Guaranteed Safe Checkout

HKS Hi-Power SPEC-L Exhaust for ZN8 Toyota GR86 and ZD8 Subaru BRZ

Development and Testing

Features

Specifications

Applications

Notes

Frequently Asked Questions

About HKS

Reviews