Boss manifold that has been modified and enhanced for cars making higher boost levels. This modified manifold has been tested at over 35 psi for 2+ seasons with no issues and never sent back.
4.62 @ 157mph in NMRA renegade trim , 3X champion
Use the same manifold on our 2018 TT Mustang 5.0 and push 30+ psi and 1500+ rwhp.