Review on 🔧 DNA Motoring OEM-CONV-002: Factory Style Catalytic Converter Y-Pipe for 07-09 Silverado Tahoe Sierra 4.8 5.3 6.0L by Gonzalo Marshall

I was attracted by the price of this item and the claim that it is an OEM specification and meets the vehicle's EMC. It is not so! About 5 months after installation, EMC issued code "P0420 and P0430"! I took my truck back to the shop where they installed the Y-pipe! They said the pipe was installed as per the manufacturer's recommendation! I had them check the O2 sensors which were fine, the throttle position sensor was replaced, vacuum leaks found on the aisle side exhaust manifold and then repaired, the temp sensor was also replaced. After troubleshooting and repairing, we found that the catalytic converters were no longer working! I have tried several times to contact DNA Motoring by phone and email. The only response I received was an email stating that DNA Motoring would require a copy or screenshot of the order number which I sent them when I replied to the email letter. I haven't heard from them yet! In the meantime, my truck fails the inspection! So far there is no DNA customer service! So I contacted Revain support and they decided to solve the problem. Thank you Rewin!