Review on 🏎️ Pacesetter 753505 Direct-Fit Manifold with Catalytic Converter: High-Performance Solution for Seamless Exhaust System Integration by Micael Casillas

These Cat Manifolds fixed my horrible 0430/0420 Armada/Titan Check Engine dead catalyst bulb. There is no noticeable difference in engine performance, the engine runs a little smoother. Mileage increased by 2mpg on the highway due to new non-clogging coils. I had the dealer install them (only $580 extra labor). I was glad I did. They said the fit was very difficult due to the many screw modifications and probe modifications. It took them 1.5 full working days to install two distributors/coils. The codes are unique.