Is the Super Turbo Muffler for VA louder than stock?

Yes, by 7 dB on the HKS figures. HKS measured 85 dB on its close test against 78 dB for the factory system, on the Japanese-market VAB STI. HKS describes a dry, sporty sound under throttle that fills the cabin without spoiling its comfort.

Is the center pipe included?

Yes. HKS supplies the full system from the factory front pipe back: a first mid pipe with silencers, a second mid pipe that splits left and right, and two main mufflers with 124mm tips. The factory spherical gasket, spring bolts and rubber hangers are reused, and the center pipe is the lowest point at 125mm on stock suspension.

Are the tips blue like some product photos?

No. HKS states that part 31029-AF011 ships with silver tips rather than the burnt blue gradation shown in some photos. Other HKS options for the VA STI are the quieter HKS LEGAMAX Premium Exhaust for VA, with four 90mm tips, and the lighter HKS Hi-Power SPEC-L II for VA.

Which WRX STI models does it fit?

HKS USA lists the Super Turbo Muffler for VA, part 31029-AF011, for the 2015 to 2021 WRX STI sedan with the EJ257. HKS Japan lists it as not compatible with the S207, S208 and TYPE RA-R, and gives no statement on the S209 or the US Type RA, so owners of any limited-edition STI should confirm fitment with Bulletproof Automotive first.

Does it fit the FA20 WRX?

Not confirmed. The HKS USA product name mentions both the VAB and the VAG, but its fitment record lists only the EJ257 WRX STI, and HKS Japan lists the part for the VAB STI. Owners of the 2015 to 2021 WRX with the FA20DIT should contact Bulletproof Automotive before ordering this part.

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Description

HKS Super Turbo Muffler for VA Subaru WRX STI

HKS’s Super Turbo Muffler for VA Subaru WRX STI is a full SUS304 stainless cat-back for the EJ257 sedan, running a 75mm straight pipe from the factory front pipe back through twin mid pipes to left and right mufflers with 124mm silver tips. HKS built it for low exhaust pressure without losing cabin comfort, and measured 85 dB against 78 dB for the factory system, so the STI gains a dry, sporty voice while the cabin stays comfortable. It suits the daily-driven STI that wants more flow without a harsh exhaust.

Development and Testing

HKS aimed the Super Turbo Muffler for VA cars at powerful performance with a quiet sound. The 75mm straight structure keeps exhaust pressure low while holding interior noise down, and the dual main mufflers give a dry, sporty sound through the cabin once the throttle opens. HKS developed and certified the system on the Japanese-market VAB STI with the 2.0L EJ20 turbo.

Features

Full cat-back from the factory front pipe, center pipe included
75mm straight structure splitting to twin 60mm pipes
Left and right main mufflers with 124mm silver tips
SUS304 stainless steel throughout
Reuses the factory spherical gasket, spring bolts and rubber hangers

Specifications

Center Pipe Diameter: 75mm splitting to 60mm x 2
Tips: 124mm, silver, left and right
Main Material: SUS304 stainless steel
Sound Level, Factory System: 78 dB, HKS measurement
Sound Level, HKS: 85 dB, HKS measurement
Minimum Road Clearance: 125mm at the center pipe, stock suspension
JASMA Certification: JQR40144246

Applications

Subaru WRX STI: VA | 2015-2021 | EJ257

Notes

The tips on this kit are silver, not the blue gradation seen in some product photos
HKS Japan lists this kit as not compatible with the S207, S208 and TYPE RA-R
Sound figures and JASMA certification are HKS results on the Japanese-market VAB STI with the EJ20; HKS USA lists the part for the US EJ257 car
HKS lists 30.3kg (66.8lb) with the packing dimensions and does not publish a separate product weight
HKS notes that hangers, brackets and stays may change without prior notice

Frequently Asked Questions

Is the Super Turbo Muffler for VA louder than stock? Yes, by 7 dB on the HKS figures. HKS measured 85 dB on its close test against 78 dB for the factory system, on the Japanese-market VAB STI. HKS describes a dry, sporty sound under throttle that fills the cabin without spoiling its comfort.
Is the center pipe included? Yes. HKS supplies the full system from the factory front pipe back: a first mid pipe with silencers, a second mid pipe that splits left and right, and two main mufflers with 124mm tips. The factory spherical gasket, spring bolts and rubber hangers are reused, and the center pipe is the lowest point at 125mm on stock suspension.
Are the tips blue like some product photos? No. HKS states that part 31029-AF011 ships with silver tips rather than the burnt blue gradation shown in some photos. Other HKS options for the VA STI are the quieter HKS LEGAMAX Premium Exhaust for VA, with four 90mm tips, and the lighter HKS Hi-Power SPEC-L II for VA.
Which WRX STI models does it fit? HKS USA lists the Super Turbo Muffler for VA, part 31029-AF011, for the 2015 to 2021 WRX STI sedan with the EJ257. HKS Japan lists it as not compatible with the S207, S208 and TYPE RA-R, and gives no statement on the S209 or the US Type RA, so owners of any limited-edition STI should confirm fitment with Bulletproof Automotive first.
Does it fit the FA20 WRX? Not confirmed. The HKS USA product name mentions both the VAB and the VAG, but its fitment record lists only the EJ257 WRX STI, and HKS Japan lists the part for the VAB STI. Owners of the 2015 to 2021 WRX with the FA20DIT should contact Bulletproof Automotive before ordering this part.

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 Super Turbo Muffler for VA Subaru WRX STI [31029-AF011]

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HKS Super Turbo Muffler for VA Subaru WRX STI

Development and Testing

Features

Specifications

Applications

Notes

Frequently Asked Questions

About HKS

Reviews