Which 987 models do the Competition Headers fit?

The Competition Headers fit the 987.1 Porsche Boxster, Boxster S, Cayman and Cayman S from 2005 to 2008, across the 2.7, 3.2 and 3.4 liter flat-six engines. They are built for the 987.1 generation; the later 987.2 cars from 2009 onward use a different header and are not covered by this set.

Why replace the factory headers?

On the 987.1, the factory headers are a known weak point, especially on hard-driven and raced cars, where they crack and fail over time. SOUL's headers are built from T304L stainless to survive that use, and they flow better and weigh less than the factory manifolds, which is why they became the class-legal choice for the 987.1 Spec Cayman series.

Will they throw a check engine light, and are they street legal?

A check engine light should be expected once the headers are on a street-registered car, and a track-use ECU tune can clear it. The headers are not CARB certified and are intended for off-road and competition use, so their legal status on the street depends on the emissions laws where the car is registered.

What are the SOUL Competition Headers made from?

They are fabricated in-house from 14 to 16 gauge, mandrel-bent T304L stainless steel, with port-matched flanges, smooth-radius primaries and optimized collectors. Every set is fixture-tested for fitment and quality-checked before it ships, and it carries SOUL's lifetime warranty to the original owner for both street and track use.

Do they add power, and is a tune required?

SOUL designed the headers for more power and a sharper sound than the factory manifolds, though no dyno figures are published, so treat the power gain as real but modest on an otherwise stock car. No tune is required to run them, but many owners add one, and a track-use tune is also what addresses the check engine light.

How hard is the installation?

SOUL designed the headers as a direct bolt-on and provides an install guide, and many experienced owners fit them at home. Because headers sit deep in the engine bay, some owners prefer a shop for the job, and a lift makes the work much easier. Confirm fitment and clearances as you go.

Description

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Description

SOUL Performance Competition Headers for 987.1 Porsche Boxster / Cayman

SOUL Performance’s Competition Headers for the 987.1 Porsche Boxster and Cayman were born from a problem the factory headers could not survive. When the 987.1 Cayman became the basis of its own PCA Club Racing class, teams kept losing weekends to factory headers that cracked and failed under the stress of a race season, and SOUL was asked to build something that would last. Fabricated in-house in Willow Grove, Pennsylvania from mandrel-bent T304L stainless with port-matched flanges and smooth-radius primaries, these headers flow harder, run cooler and weigh less than the factory manifolds, freeing more of the flat-six’s power and giving it a sharper voice. They are now the exclusive, class-legal header for the 987.1 Spec Cayman series, which is the clearest endorsement a race part can earn: the people who run these cars hardest chose them as the standard.

Development and Testing

SOUL did not design these headers in a vacuum. Members of the 987.1 Spec Cayman racing community came to SOUL because the factory headers on their cars kept cracking and failing, costing them track time, points and money over a season. SOUL built a replacement to take that abuse, and it worked: the Competition Headers are now written into the series as the exclusive, class-legal header that every car in the class runs. For a street car the same durability means a header that holds up to hard road and track driving without the fatigue failures that plague the stock part.

Construction

Each set is fabricated by hand in Willow Grove, Pennsylvania from 14 to 16 gauge T304L stainless steel, mandrel-bent to keep the bends smooth and the flow clean. Port-matched flanges line the headers up precisely to the engine, smooth-radius primaries and optimized collectors keep exhaust velocity high, and every set is fixture-tested for fitment and quality-checked before it ships. The result is lighter than the factory manifolds and built to run cooler, which is as much about longevity on a hard-driven car as it is about power.

Features

Mandrel-bent 14 to 16 gauge T304L stainless steel construction
Port-matched flanges, smooth-radius primaries and optimized collectors for cleaner flow
Lighter than the factory manifolds, and built to run cooler
More power and a sharper exhaust note than the stock manifolds
The exclusive, class-legal header for the 987.1 Spec Cayman racing series
Direct bolt-on fit, fixture-tested and quality-checked, with installation instructions included
Lifetime warranty to the original owner against defects in materials and workmanship, for street and track use

Applications

Porsche Boxster: 987.1 | 2005-2008 | 2.7L F6
Porsche Boxster S: 987.1 | 2005-2008 | 3.2L F6, 3.4L F6
Porsche Cayman: 987.1 | 2006-2008 | 2.7L F6
Porsche Cayman S: 987.1 | 2006-2008 | 3.4L F6

Notes

This product may trigger a check engine light
Installation instructions are available from SOUL Performance

Frequently Asked Questions

Which 987 models do the Competition Headers fit? The Competition Headers fit the 987.1 Porsche Boxster, Boxster S, Cayman and Cayman S from 2005 to 2008, across the 2.7, 3.2 and 3.4 liter flat-six engines. They are built for the 987.1 generation; the later 987.2 cars from 2009 onward use a different header and are not covered by this set.
Why replace the factory headers? On the 987.1, the factory headers are a known weak point, especially on hard-driven and raced cars, where they crack and fail over time. SOUL’s headers are built from T304L stainless to survive that use, and they flow better and weigh less than the factory manifolds, which is why they became the class-legal choice for the 987.1 Spec Cayman series.
Will they throw a check engine light, and are they street legal? A check engine light should be expected once the headers are on a street-registered car, and a track-use ECU tune can clear it. The headers are not CARB certified and are intended for off-road and competition use, so their legal status on the street depends on the emissions laws where the car is registered.
What are the SOUL Competition Headers made from? They are fabricated in-house from 14 to 16 gauge, mandrel-bent T304L stainless steel, with port-matched flanges, smooth-radius primaries and optimized collectors. Every set is fixture-tested for fitment and quality-checked before it ships, and it carries SOUL’s lifetime warranty to the original owner for both street and track use.
Do they add power, and is a tune required? SOUL designed the headers for more power and a sharper sound than the factory manifolds, though no dyno figures are published, so treat the power gain as real but modest on an otherwise stock car. No tune is required to run them, but many owners add one, and a track-use tune is also what addresses the check engine light.
How hard is the installation? SOUL designed the headers as a direct bolt-on and provides an install guide, and many experienced owners fit them at home. Because headers sit deep in the engine bay, some owners prefer a shop for the job, and a lift makes the work much easier. Confirm fitment and clearances as you go.

About SOUL Performance

SOUL Performance Products was founded by a group of automotive enthusiasts with deep industry experience and a commitment to doing right by their customers. Their mission is to deliver outstanding performance parts at fair pricing, backed by quality service and one of the best warranties in the industry. SOUL develops high-performance exhaust systems and components that are engineered for exceptional sound and proven performance, with products ready to ship quickly worldwide. Guided by core values of honesty, transparency, and passion for cars, they build strong community connections and prioritize customer satisfaction at every step. Operating out of a dedicated facility in Willow Grove, Pennsylvania, SOUL combines hands-on research, engineering, and manufacturing expertise to create parts that meet and exceed the demands of serious enthusiasts.

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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SOUL Performance Competition Headers for 987.1 Porsche Boxster / Cayman [POR.9871.COH]

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SOUL Performance Competition Headers for 987.1 Porsche Boxster / Cayman

Development and Testing

Construction

Features

Applications

Notes

Frequently Asked Questions

About SOUL Performance

Reviews