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I recently deleted the DPF, Catalyst, EGRs and urea injection from my 2011 BMW 335d, and have the JR 2.8 tune. The car produces significantly more torque and horsepower, and I think it’s prudent to start using a new oil that is not compromised by emissions control longevity considerations. I...

I'm looking to move away from the relatively weak 507 spec oil now that my car no longer has a DPF, the EGR valves are bypassed/removed, and the cat was also removed (Rawtek downpipe+midpipe, Malone tune). I understand the 507 spec is designed to protect emissions components and handle extra...