This catch can is for the passenger side PCV line while UPR-DR5032-8 is for the driver's side of your truck. While the choice is entirely up to you, we had a single catch can setup on our truck's passenger side (installed before UPR got more specific with their design and part numbers). When we replaced the intercooler with a Wagner EVO, the passenger side inlet port of our factory intercooler was clean, while the driver's side was coated in oil/condensation residue. If it were my truck, I'd definitely run a dual catch can setup, but one is better than none in any case.