High-Flow Race Headers – Porsche 992 GT3 / GT3 RS (T304 Stainless Steel)
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High-Flow Race Headers – Porsche 991.1 / 991.2 GT3 & GT3RS (T304 Stainless Steel)
Unlock the full performance and sound potential of your Porsche 991 GT3 or GT3 RS with the Cen-Cal Motorsport High-Flow Race Headers, engineered for maximum exhaust flow, throttle response, and track-ready tone. Built for the high-revving 9,000 RPM flat-six, these headers transform your GT3’s mid-range torque, top-end power, and naturally aspirated exhaust note.
Constructed from premium T304 stainless steel, each set is built to handle extreme track temperatures while providing long-lasting durability and precision fitment. Mandrel-bent tubing and TIG-welded construction ensure smooth flow, structural integrity, and a flawless race-quality finish.
Product Features
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T304 Stainless Steel Construction: Corrosion-resistant, heat-tolerant, and built for high-performance driving.
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Maximized Exhaust Flow: Reduces backpressure for increased horsepower, torque, and throttle response.
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Mandrel-Bent Tubing: Maintains consistent diameter for optimal gas velocity and smooth flow.
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Precision TIG Welds: Clean, race-quality welds for strength, durability, and visual appeal.
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100% OEM-Compatible Fitment: Bolts directly to stock or aftermarket exhaust systems—no cutting or major modifications required.
Configuration Options
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Free-Flow Catless Race Headers: Maximum performance and aggressive, high-pitched race tone.
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High-Flow Catted Race Headers: Strong flow with a more refined, street-friendly sound.
Fitment
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2014–2019 Porsche 991.1 / 991.2 GT3
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2016–2019 Porsche 991.1 / 991.2 GT3RS
Benefits
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Significant horsepower and torque gains throughout the RPM range
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Enhanced throttle response and reduced backpressure
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Aggressive, motorsport-inspired exhaust tone
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Precision-built for durability and track-ready performance
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Fully reversible installation compatible with stock or aftermarket exhaust systems
Availability & Lead Time
This product is sometimes in stock at our Oceanside, CA location, but lead times may vary based on demand. All headers are usually made to order and typically require 5–15 business days for production with an additional 10 business days for shipping.
Please email support@cencalmotorsport.com to confirm current availability before ordering.
FAQs
Do I need a tune with these headers?
Yes, a tune is recommended to fully unlock performance gains and prevent check-engine lights when removing catalytic components.
Are these street-legal?
These headers are race-use only and may not comply with emissions regulations in all areas.
Do they work with the factory exhaust system?
Yes, they integrate with both OEM and aftermarket cat-back systems.
Are these a full replacement?
Yes, they replace the factory headers entirely with a high-flow, performance-optimized design.
⚠️ THIS PRODUCT IS FOR OFF-ROAD USE ONLY
High-Flow Race Headers – Porsche 992 GT3 / GT3 RS (T304 Stainless Steel)
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
Orders take 24–48 hours to process once placed. Made-to-order items begin production after processing, while in-stock items are prepped, packaged, and ship within 3–4 days from our Oceanside, CA location (please allow extra time for packages to arrive during high-volume periods). Some items may be backordered—if so, we’ll email you with status and options. Freight items such as wheels, exhausts, trunks, and hoods require additional handling time and may ship separately.
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Customer Support
Real BMW-savvy humans here. We’re available Mon–Fri, 10am–5pm PT by email and phone/text for install questions, fitment help, or order updates. Send your year/model/trim (VIN if handy) and we’ll point you to the right parts fast.
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FAQ’s
Quick answers to the most common questions: fitment & compatibility, order changes/cancellations, build & lead times, international shipping & duties, and returns/exchanges. Start there for instant clarity—then reach out if you still need a hand.
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Contact Us
Need help choosing parts or tracking an order? Send an email to our support team, support@cencalmotorsport.com
About Us
Cen-Cal Motorsport isn’t just a parts shop—it’s a lifestyle for BMW enthusiasts who crave performance, precision, and style. We’re all about taking your BMW to the next level with premium parts that bring out the beast under the hood while keeping its luxury vibes on point.
Your BMW isn’t just a car—it’s an experience. Whether you're upgrading for speed, handling, or simply flexing on the road, we’ve got the gear to match your passion.
Why settle for stock? Explore our lineup and see how real quality transforms the drive. Got questions? Hit us up anytime—your ride deserves nothing but the best.
win a single turbo e92 335i
We brought this E92 335i back from the dead — now it’s your chance to take the keys. From the yellow-powdered turbo and short-throw shifter to our full valved catback system, every inch of this build represents what CenCal Motorsport stands for: no halfway builds.
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