Roland is rude rushes you in and out and off the phone. He lies and is condescending. Will be going to aldermans here on out. They claimed and laughed at me that my 2005 jeep would never ever get away from having a o2 sensor code. And he literally laughed at me. Took it to there competitor and within 2 drive cycles the code cleared with the new manifold. I drove a round trip of 400 miles with 4 warm up cycles still no code. Before this I could hear the manifold leaking and I was getting on and off again codes for lean. Depending on if it sealed it self as it warmed up. But due to the bolts that are broken it didn't always seal. These guys are a joke and think that any exhaust leak that isn't heard with the might stethoscope aren't large enough to cause a issue. Riiiighhtt ok. What kind of exhaust shop doesn't pressurized a exhaust system or use a cone method. A shanty whole in the wall that's who.

Took my 72 C10 in for magnaflow exhaust install. Sounds, runs and looks clean and smooth. Would definitely recommend!