Description
The Fabspeed Side Muffler Bypass Pipes for the Porsche 997 GT3 and GT3 RS are precision‑engineered rear exhaust upgrades that remove the restrictive stock side mufflers to liberate exhaust flow, reduce weight, and deliver a more visceral flat‑six soundtrack. Mandrel‑bent from T304L stainless steel with CNC precision, these bypass pipes significantly increase exhaust throughput, reducing backpressure for sharper throttle response and stronger mid‑range torque delivery. They maintain compliance with factory tips while adding pronounced character under acceleration and create a distinctly track‑focused exhaust note without excessive drone. Ideal as a standalone upgrade or as part of a full performance exhaust build, these bypass pipes elevate both performance and auditory presence for your 997 GT3 or GT3 RS.
Fitment Notes
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Fits Porsche 911 GT3 (997.1 & 997.2; 2007–2012)
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Fits Porsche 911 GT3 RS (997.1 & 997.2)
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Directly replaces stock side/secondary mufflers on the rear exhaust
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Works with OEM center section and tips or Fabspeed aftermarket tips
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Direct bolt‑on design — no cutting or welding required
Included
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Pair of side muffler bypass pipes (left and right)
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CNC‑mandrel‑bent T304L stainless steel tubing
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Mounting hardware for direct replacement of stock side mufflers
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Installation instructions
Product Specs
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Material: T304L stainless steel for corrosion resistance and thermal durability
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Tubing: Mandrel‑bent for smooth flow and optimized velocity
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Weight: Reduced vs stock side muffler assemblies (-34lbs / -21kg)
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Fitment: Direct OEM fitment to factory exhaust flanges
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Finish: Raw stainless with polished welds
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Installation: Bolt‑on — uses existing mounts and brackets
Product Features
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Maximized exhaust flow: Eliminates stock side mufflers to reduce backpressure and improve exhaust gas evacuation.
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Sharper throttle response: Reduced restriction enhances mid‑range torque and response out of corners.
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Aggressive yet tuned sound: Delivers a more engaging flat‑six exhaust note with added presence without overwhelming drone.
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Premium stainless construction: T304L stainless steel and mandrel bending ensure durability for street and occasional track use.
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Direct bolt‑on fitment: Designed to install without cutting, welding, or spacing mods.
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OEM tip compatibility: Works with stock or upgraded exhaust tips for a finished appearance.
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