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    • Tune your D4 Audi S8 4.0 TFSI V8 and retain a warranty - APR Plus S8 software + dyno

      The D4 Audi S8 is a beast with a ton of power just waiting to be unlocked. It is an amazing machine with a lot of tuning headroom built in. D4 S8's are capable of 10-second runs tune only and seeing a luxury barge hustle all that heft through the 1/4 mile leaving sports cars in its wake is incredible.


      Despite this, some owners are afraid to tune. Sure, the S8 is expensive and you do not want to pay for anything should something go wrong.

      What is there was a way to have the best of both world's? A tune and a warranty?

      Well, that is where APR Plus comes in. The APR Plus software is not as aggressive as their race gas and upper stage tunes but it does come with a warranty and plenty of extra power:


      Yes, that is another 86 horsepower at the wheels an over 600 lb-ft of torque at the wheels.

      If you own a stock S8, what are you waiting for?

      This article was originally published in forum thread: APR Plus is Now Available for the Audi S8 4.0 TFSI! started by Arin@APR View original post