034Motorsport Density Line Control Arm Kit Upper Adjustable for B8/B8.5 Audi A4/S4, A5/S5/RS5 & Q5/SQ5 MSRP: $1,554.41 - $1,593.02
South Bend Stage 2 Endurance Clutch kit * Does not include Flywheel (395 Ft-LBS) for Audi B8/8.5 S4/S5 3.0T MSRP: $1,689.58
MBRP T304 Stainless Steel 2.5" Resonator Back, Dual Rear Quad Carbon Fiber Tips Exhaust System for 2018-2021 Audi / S4 / S5 (Free Shipping!!) MSRP: $1,792.49
MBRP T304 Stainless Steel 2.5" Resonator Back, Dual Rear Quad Tips Exhaust System for 2018-2021 Audi / S4 / S5 (Free Shipping!!) MSRP: $1,634.99