PPE headers for 300 and 350 AWD (V6 2GR-FKS engines) for model years 2018 and newer (2016 for GS models - see fitment table below). These headers have a much larger cast inlet and 2.25” tubing with a 60mm outlet. These headers have SPORT high flow cats. These are custom cats that have a triple spiral metal core, 200CPI and EU3 spec. Please call us if you have questions about cats and emissions. Please note that RR Racing has not tested these headers. We are in the process of developing a tune for these headers. We expect that these headers would make 5-10whp over stock based on prior experience.