hits the dyno with this Audi S8 featuring our VR Tuned Tuning Box Kit. The plug and play tuning box adds up to 99 horsepower with 98-100octane gas and as tested, 55awhp on 91 octane. The dyno test was done on our Mustang all wheel drive dyno with a ambient air temp of 89F. Check out all our Tuning Box Kit applications at .
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