APR 09-18 Audi A6/A7/A8 Quattro (3.0 TFSI) Supercharger Drive & Crank Pulley w/Belt (Press On)

APR's Supercharger Drive Pulley Upgrade decreases the diameter of the factory pulley from ~63.25mm to 57.75mm, which in turn spins the supercharger ~9.5% faster. This results in a healthy bump in horsepower and torque across the entire RPM range with the supercharger operating at a higher rate of speed. The pulley is CNC machined from billet stainless steel, e-coated black for an OEM appearance and is press fitted to the factory supercharger unit.APR's Supercharger Crank Pulley Upgrade increases the diameter of the factory pulley from ~162mm to ~187mm, which in turn spins the supercharger ~15.4% faster. This results in a larger bump in horsepower and torque across the entire RPM range, as the supercharger is spinning at an even higher rate of speed. The pulley retains the factory harmonically balanced crank pulley and bolts on top of the existing unit. It is CNC machined from light weight billet aluminum with weight saving pockets throughout. It has an anodized black finish and includes new crank pulley bolts.Upgrading both the supercharger drive and crank pulleys results in the factory supercharger spinning ~26.4% faster than stock. This speed was chosen after extensive engine and chassis dyno testing with various pulley sizes and supercharger speeds. The result is an even higher horsepower and torque gain across the entire RPM range. However, at the airflow levels achieved with a dual pulley setup, maximum power is severely restricted by the factory throttle body unit. The APR Ultracharger Throttle Body Upgrade is necessary to take full advantage of the dual pulley configuration, and is available in platform specific variations for the B8/B8.5 A4/A4/S4/S5, Q5/SQ5 and C7 A6/A7.Belt IncludedSoftware sold separately

This Part Fits:

Year	Make	Model	Submodel
2009-2011	Audi	A6 Quattro	Avant
2009-2011	Audi	A6 Quattro	Base
2017	Audi	A6 Quattro	Competition
2012-2014,2018	Audi	A6 Quattro	Premium
2012-2018	Audi	A6 Quattro	Premium Plus
2012-2018	Audi	A6 Quattro	Prestige
2018	Audi	A6 Quattro	Sport
2014-2016	Audi	A6 Quattro	TDI Premium Plus
2014-2016	Audi	A6 Quattro	TDI Prestige
2012-2013	Audi	A7 Quattro	Base
2017	Audi	A7 Quattro	Competition
2014-2018	Audi	A7 Quattro	Premium Plus
2014-2018	Audi	A7 Quattro	Prestige
2014-2016	Audi	A7 Quattro	TDI Premium Plus
2014-2016	Audi	A7 Quattro	TDI Prestige
2013-2015	Audi	A8 Quattro	Base
2013-2018	Audi	A8 Quattro	L
2014-2016	Audi	A8 Quattro	L TDI
2013-2017	Audi	Q5	Premium Plus
2013-2017	Audi	Q5	Prestige
2014-2016	Audi	Q5	TDI Premium Plus
2016	Audi	Q5	TDI Premium Plus S-Line
2014-2016	Audi	Q5	TDI Prestige
2016	Audi	Q5	TDI Prestige S-Line
2011-2015	Audi	Q7	Premium
2011-2015	Audi	Q7	Premium Plus
2011-2015	Audi	Q7	Prestige
2011-2015	Audi	Q7	TDI Premium
2011-2015	Audi	Q7	TDI Premium Plus
2011-2015	Audi	Q7	TDI Prestige
2010-2013	Audi	S4	Base
2014-2016	Audi	S4	Premium Plus
2014-2016	Audi	S4	Prestige
2013,2017	Audi	S5	Base
2010-2013	Audi	S5	Cabriolet
2014-2016	Audi	S5	Premium Plus
2014-2016	Audi	S5	Prestige
2014-2017	Audi	SQ5	Premium Plus
2014-2017	Audi	SQ5	Prestige