CORSA Xtreme axle-back exhaust system for 2008–2013 C6 Corvette LS3
Axle-back exhaust piping section used in CORSA 21012 for C6 Corvette LS3
Xtreme axle-back exhaust installed under a C6 Corvette LS3
Corsa

C6 Corvette Corsa Xtreme 21012 (2008-2013)

21012

Regular price $2,088.90 Sale price $1,899.99 Save $188.91
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C6 Corvette CORSA Exhaust - Free shipping in the USA

Xtreme Axle-Back Exhaust with Polished Pro-Series Tips for C6 Corvette

The CORSA 21012 Xtreme axle-back exhaust is engineered for the 2008–2013 Chevrolet Corvette C6 equipped with the 6.2L LS3 engine. This system replaces the factory rear exhaust section with a 2.5-inch dual rear-exit layout and finishes with quad 4.5-inch polished Pro-Series tips for a bold, high-impact rear appearance.

CORSA 21012 Product Details

  • Axle-back exhaust system designed for the C6 Corvette LS3 platform
  • 2.5-inch mandrel-bent stainless steel piping
  • Dual rear exit exhaust configuration
  • Quad 4.5-inch polished Pro-Series tips (dual-wall, slash-cut)
  • Xtreme sound level for maximum exhaust presence
  • Direct-fit installation using factory rear exhaust mounting points

Why CORSA Leads…

  • Vehicle-specific exhaust designs tuned for Corvette platforms
  • Xtreme sound profile engineered for aggressive driving
  • Precision manufacturing for consistent fitment and tip alignment
  • Manufactured in the USA and backed by a limited lifetime warranty
  • Trusted by Corvette owners seeking uncompromising sound

Benefits

  • Significantly more aggressive exhaust tone than stock
  • Improved exhaust flow for sharper throttle response
  • High-impact sound under acceleration and wide-open throttle
  • Large polished tips enhance the rear profile of the C6

What to Expect After Installation
On an LS3 C6 Corvette, expect an aggressive cold start, a commanding exhaust note under throttle, and a raw, high-volume sound profile. This axle-back is commonly chosen by owners who want maximum sound without converting to a full exhaust system.

Technical Specifications

  • System type: Axle-back
  • Pipe diameter: 2.5 inches
  • Exit style: Dual rear
  • Tip configuration: Quad
  • Tip size: 4.5 inches
  • Tip finish: Polished Pro-Series
  • Sound level: Xtreme

Installation Overview
This axle-back exhaust installs directly in place of the factory rear section. Installation involves removing the stock axle-back, positioning the CORSA system, aligning the tips, and tightening all connections. No cutting or welding is required.

Corvette Compatibility

  • This fits the 2008–2013 Chevrolet Corvette C6 (6.2L LS3) exactly.
  • Manual and automatic transmissions
  • Coupe and Convertible models

Cross-Compatibility & Related Fitment

  • Does not fit C6 Z06 models with the 7.0L LS7 engine
  • Does not fit C6 ZR1 models with the 6.2L LS9 engine
  • Does not fit 2005–2007 C6 models with the 6.0L LS2 engine

Testimonials

“Exactly the aggressive sound I wanted. Loud when I’m on it and zero drone cruising.”

Custom Corvette Accessories is enthusiast-run, focused on correct fitment, fast nationwide shipping, and real-world Corvette ownership support.

If you want an aggressive axle-back exhaust that fits the LS3 C6 correctly and delivers CORSA’s loudest sound profile, the CORSA 21012 Xtreme axle-back is one of the best upgrades for 2008–2013 C6 Corvette owners.

CORSA Exhaust Made in the USA

Frequently Asked Questions

Xtreme is CORSA’s most aggressive axle-back sound profile
No. This replaces only the rear axle-back section.
No. Axle-back systems do not require tuning.