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Unleash Your Big Block Chevy Power

The Borla CrateMuffler ATAK is the industry's first exhaust component specifically engineered to optimize the acoustic profile and power delivery of high-performance Big Block Chevy engines. Designed for 396, 402, and 427 cubic inch motors, this muffler delivers the legendary aggressive ATAK sound while effectively managing interior drone.

Technical Specifications & Build Quality

• Engine Compatibility: Optimized for BBC 396/402/427 crate and custom builds.
• Construction: Premium T-304 stainless steel for superior corrosion resistance compared to T-409 series.
• Design: 2.5-inch ID Offset/Center configuration with a 14in x 4.35in x 9in oval body.
• Directional Flow: Engineered for specific flow paths; outlet identified by integrated mounting bracket.
• Precision Engineering: CNC manufacturing ensures a perfect fit for custom exhaust fabrications.

By utilizing advanced acoustic tuning, Borla has created a muffler that doesn't just make noise—it creates a refined, high-performance exhaust note tailored to the unique harmonic signature of your big block engine. The durable T-304 stainless construction ensures your investment lasts for the long haul, backed by Borla's industry-leading Million-Mile Warranty. Whether you are building a street machine or a track-focused beast, this muffler provides the flow and sound quality required for serious performance. Find the best exhaust upgrades for your build at GGCRACING.