SOUL Performance Street Headers for 982 Porsche 718 Cayman GT4, GTS 4.0 and Spyder
SOUL Performance’s Street Headers for 982 Porsche 718 GT4, GTS 4.0 and Spyder give the naturally aspirated 4.0-liter flat-six a proper set of headers in place of the factory part, which was built around cost and emissions rather than performance. SOUL designs and builds them in-house in Willow Grove, Pennsylvania, with mandrel-bent T304L stainless, cast head flanges, water-jet exhaust flanges machined to a tight tolerance, and a performance collector fed by merge spikes, all joined with back-purged TIG welds. Built around large-diameter, free-flowing catalytic converters, they free up power, throttle response, and flat-six tone while keeping the car emissions-conscious, and at 24.19 pounds the set is lighter than the factory headers it replaces. Every set bolts straight on with new hardware and OEM three-bolt gaskets in the box. For the GT4, GTS 4.0, or Spyder owner who wants real gains and a sharper voice from the 4.0-liter engine, this is the foundation, and it is backed for life.
Construction
SOUL builds every set in-house from thick-wall, mandrel-bent T304L stainless, with cast head flanges and water-jet-cut exhaust flanges machined to a ±0.003-inch tolerance for a precise seal. The welds are back-purged TIG laid under ARCAL Prime argon, and each set is foam-packed with new high-grade hardware and OEM three-bolt gaskets.
Power and Sound
SOUL does not publish a dyno figure for this set, so we will not invent one. What the headers deliver is freer flow from the heads, which brings more power and throttle response and a more aggressive flat-six note, without the drawbacks of a catless setup. The gains build as the naturally aspirated engine climbs toward its high redline.
Features
- Catted street headers with large-diameter, free-flowing catalytic converters, so the car stays emissions-conscious
- A performance collector and merge spikes replace the factory restriction for cleaner flow
- More power, throttle response, and a sharper flat-six note
- Lighter than the factory headers
- New high-grade hardware and OEM three-bolt gaskets included
- Built in the USA and backed by the SOUL Lifetime Warranty for the original owner, street and track
Specifications
- Material: .065″ thick-wall T304L stainless steel
- Flanges: cast head flanges and water-jet exhaust flanges
- Collector: performance collector with merge spikes
- Catalytic converters: large-diameter, free-flowing, included
- Weight: 24.19 lb
- Welds: back-purged TIG with ARCAL Prime argon
Applications
- Porsche 718 Cayman GT4: 982 | 2020-2024 | 4.0L flat-six
- Porsche 718 Cayman GTS 4.0: 982 | 2020-2024 | 4.0L flat-six
- Porsche 718 Spyder: 982 | 2020-2023 | 4.0L flat-six
Notes
- The SOUL Performance Street Headers for 982 are catted headers with large-diameter, free-flowing catalytic converters; new hardware and OEM three-bolt gaskets are included
- They fit the 4.0-liter 718 GT4, GTS 4.0, and Spyder, and are not designed for the GT4 RS or Spyder RS, which SOUL covers with a separate product
- These headers do not fit the 2.0-liter or 2.5-liter turbocharged 718
- An ECU tune is not required, though a tune builds on the added flow
Frequently Asked Questions
- Do the SOUL Street Headers for 982 fit the GT4 RS? No. These street headers fit the 4.0-liter 718 GT4, GTS 4.0, and Spyder; the GT4 RS and Spyder RS are covered by a separate SOUL product, so order the correct one for your car. Confirm your model before buying.
- Are they catted, and will they keep the car emissions-conscious? Yes. The SOUL Street Headers for 982 are built around large-diameter, free-flowing catalytic converters, so they add flow and power while keeping the catalytic converters in the system rather than deleting them. SOUL designs them as a street-conscious upgrade for the 4.0-liter 718.
- How much power do they add? SOUL does not publish a dyno figure for this set, so we will not quote one. The headers remove the factory restriction with a performance collector, merge spikes, and free-flowing cats, which brings more power, throttle response, and a sharper note that builds toward the high redline.
- How do they change the sound? They give the naturally aspirated flat-six a more aggressive, free-breathing note, fuller and sharper than the factory headers allow, without the harshness or drone of a catless setup. The character builds as the engine revs out.
- Is an ECU tune required? No. The headers work on the stock tune and deliver their gains as a bolt-on. A tune is optional and builds on the added flow, but it is not needed for the headers to do their job.
- Is professional installation recommended? Yes. The headers are a direct bolt-on with included hardware and gaskets, but a qualified technician and a lift give the cleanest fit and a proper seal at the flanges, which matters on a car like the 718.
About SOUL Performance
SOUL Performance Products designs and manufactures performance exhaust systems, headers, and components for Porsche and the world’s premier sports cars, built in-house at its facility in Willow Grove, Pennsylvania. Every part is engineered, test-fitted, and assembled in the USA to ISO 9001:2015 standards, and backed by a lifetime warranty on materials and workmanship. SOUL’s focus is straightforward: real, measured performance and a signature sound, with the fit and finish owners of these cars expect.
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