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  1. Challenger Performance Mods - Engine - 6.4L HEMI
    So after doing some research and pricing ive pretty much narrowed my search down to two places. HHP with the Comp 274 Package and a set of Long tube headers and a tune for $3500 (close to actual price). And Texas Speed with their Stage 4 N/A with a set of Long Tube headers but no tune and is...
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