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Performance Times

    Grand National 2:2 for HD® Dyna® Models

    by Jon Montgomery / June 7, 2018

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    Inspired by the Flat Track design, S&S Cycle has taken exhaust for your HD® Dyna® to the next level. Leveraging a two into two format with a hidden crossover, the new Grand National system is designed for pure, relentless performance. This exhaust features clean bends, stainless header tubing and full shielding. S&S created this exhaust to make real power without the punishment of melted boots and uneven torque delivery of most other short tract systems. S&S also includes wide band O2 sensor ports as well as removable secondary baffles that allow for sound and backpressure tuning. Available in chrome or black ceramic, the Grand National 2:2 is the game changer for the high performance Dyna market. 

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    Here's how to install the 2-2 exhaust system for HD® Dyna® models - a step by step process including the tools you will need for this install. 

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    DYNO CA Dyna Street Bob vs Grand National 2-2 with Stealth

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