Product Overview
Transform your Porsche 911 (997 Carrera C2 or C4, 2005–2008) with our T304 Stainless Steel Polished Muffler Bypass Pipes, designed for maximum sound, reduced weight, and a race-inspired appearance. Featuring quad round tips in staggered sizing, this direct bolt-on kit delivers a true Porsche Cup Car look and an extremely loud exhaust note perfect for track and racing enthusiasts.
⚠️ Fitment Notice:
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Fits: Porsche 911 997 Carrera C2 & C4 (2005–2008)
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Does NOT fit: Convertible models
Key Features
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Material: High-quality T304 stainless steel, polished finish
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Exhaust Tips: Quad round style
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Larger tip: 89mm
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Smaller tip: 76mm
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Piping Size: 59mm O.D. / 57mm I.D. connection
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Weight Savings: Lightweight design for improved performance
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Direct Bolt-On: Easy installation, no cutting or welding required
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Track Proven: Used in Porsche racing and track events worldwide
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Style: Porsche Cup Car inspired exhaust look
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Sound: Very loud, raw race-car tone
Important Notes
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This is a muffler bypass kit – expect significant increase in exhaust sound.
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For off-road and track use where extreme sound is desired.
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Customers should confirm compatibility before purchase.
Shipping
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Free shipping within the 48 contiguous U.S. states
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International shipping available at checkout
✅ Ideal for Porsche enthusiasts seeking lightweight performance, aggressive Cup Car looks, and uncompromising sound.


