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BBK Performance
BK builds quality performance parts that exceed that of the OEM manufacturer. Without exception all BBK Performance parts are direct bolt on with no modifications. All Applications are covered by full BBK manufacturers warranty and include detailed instructions for installation, with all the necessary gaskets and hardware included with your parts. 
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BST Transmission NAG1 Upgrade -    For any Challenger, Charger, Wrangler, or 300c previously equipped with the NAG1 5sp automatic transmission, being built to over 550RWHP. The BST upgraded NAG1 replaces the clutch plates and key components to deliver great performance and last much longer than the stock NAG1 -- even up to 1000HP of engine power.    An $850 core charge applies if you are not trading in an existing NAG1 transmission.The Chrysler NAG1 transmission holds up well when adding... 
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Weight:125.0 lbs