Description
Elevate your 2009–2013 Chevrolet Corvette C6 6.2L LS3 with the Xtreme & Sport 2.5” Axle-Back Exhaust System, engineered to deliver aggressive sound, improved performance, and precision craftsmanship. This system is designed for enthusiasts who want race-inspired tone and measurable power gains while maintaining a direct bolt-on installation.
Available in two distinct sound profiles:
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Xtreme – Maximum volume and aggressive track-inspired exhaust note.
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Sport – Deep, controlled tone ideal for spirited driving without excessive cabin drone.
Constructed from 2.5” mandrel-bent stainless steel tubing, the system maximizes exhaust flow, producing +12 horsepower, +13 lb-ft torque, 35% increased flow, and 10 lbs of weight savings over stock. The dual rear exit features twin 4.5” polished Pro-Series dual-wall slash-cut tips, providing a professional and performance-focused appearance.
This high-performance Axle-Back system is engineered for a direct bolt-on fit, ensuring OEM mounting points remain intact for easy installation and long-lasting durability.
Key Features:
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Fits: 2009–2013 Chevrolet Corvette C6 6.2L V8 LS3
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Sound Levels: Xtreme or Sport
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Type: Axle-Back Exhaust System
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Pipe Diameter: 2.5” mandrel-bent stainless steel
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Exit Style: Dual rear exit
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Tip Style: Twin 4.5” polished Pro-Series dual-wall slash-cut tips
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Performance Gains: +12 HP / +13 lb-ft torque / +35% flow / -10 lbs weight
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Installation: Direct bolt-on – no cutting or welding required
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Part Number: Xtreme 21012 (replaces obsolete 14959)
Upgrade your C6 Corvette with improved power, tone, and style — the ultimate axle-back system for street or track enthusiasts.
