The Dodge Challenger SRT Hellcat and Dodge Charger SRT Hellcat are a couple of the quickest, fastest and most powerful production cars in the world, but if you “need” an extra 793 horsepower from your modern Mopar muscle car – Savage Street Cars in Houston, Texas can lift the output of your Hellcat Hemi to 1,500 horsepower for less than $11k installed.
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