Audi 3.0 TFSI A4 S4 A5 S5 A6 S6 A7 S7 A8 Crankshaft Crank Pulley KIT As we All know - There is no other possibility to increase compressor speed to get more air pressure, We created our product, to supply it for our clients.Years after years, because of happy clients and good dyno resultswe decided to supply it world wide!  Product Description:- Increased Supercharger pulley diameter to - 187mm. OEM  - 163mm- Anodized black- Precision CNC machined from high quality Aluminium material (T66061).- Dyno tested at Insane Performance workhouse.- Warranty for life time.- special drive belt included.- 8 x new 12.9 grade bolts included Audi A4 S4 A5 S5 SQ5 A6 A7 3.0TFSI Crankshaft Crank Pulley KIT and replacement drive belt. Engine management calibration software is required, after pulley installation.We also offer software solutions!  This item ships worldwide! Also ships to USA!  Please contanct us  The buyer pays his country customs duties