20- CT5-V 3.0L Active Valve Cat-Back RADG and no downside by upgrading

and no downside by upgrading to the Dinan High-Performance Intercoolers for the N63TU V8

Dinan's High Flow Throttle Bodies improve intake airflow for additional horsepower and torque gains

The Dinan X-Pipe removes the factory center section after the secondary catalytic converters

The stock system cools the intake charge by using a water-to-air intercooler

and no downside by upgrading to the Dinan High-Performance Intercoolers for the N63 twin-turbo V8

20- CT5-V 3.0L Active Valve Cat-Back RADG and no downside by upgradingExhaust System Xtreme Cat Back 3 in Diameter 4 1 2 in Polished Tips Valved Stainless Natural 3. 0L Cadillac CT5 V 2020 25 Kit