The Audi RSQ3 is Audi’s effort to put a wolf in a sheep’s clothing. On the outside it looks like a pumped up Q3 but on the inside it houses a 2.5 liter TFSI RS3 engine, all wheel drive, big brakes and a seven speed DSG transmission. It is most definitely not a soccer mom car. Even less so when upgraded with a big Xona turbocharger, included in the RPCMotorsport Stage3 turbo kit. The kit itself is designed to max out performance at 780hp on a built RS3 engine. To keep the engine stock, we limited boost to under 23psi and added AEM’s water-methanol kit to improve fuel quality and anti-knock at high boost.

Maximum performance was 435whp at 23psi, leaving lots of space for more power to come when the engine is upgraded with pistons and connecting rods.

Upgrade specifications

Performance results

  • Maximum power at the wheels: 435whp (measured 273whp at wastegate pressure)
  • Maximum torque at the wheels: 379.5 ft*lbs