Karl's APR "Stage 3+" Audi B7 RS4
Karl already brought us his
Audi (B7) RS4 once to have an APR "Stage 3" supercharger kit installed. But when APR recently released their new "Stage 3+" kit featuring a bigger (Eaton TVS17…
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APR Supercharger Kit Install on Audi RS4
We begin installation of the APR Supercharger Kit on Karl's Audi RS4 today! We've been anticipating this install for a few weeks now and look forward to the results when completed. Stay tu…