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  1. Gen 7 Problems/Service Issues/Troubleshooting
    I have a 2009 malibu with the 2.4 4cyl engine. I've gotten the 420 code again. I replaced oxygen sensors but still receive the 420 code. The kicker is I've replaced the exhaust manifold/cat 2 times already. The car runs perfect. Doesn't burn oil, no coolant leakage nothing except this damn cat...
  2. Gen 8 General Discussion
    Hello, is there any good soul here who can help me find the original part numbers for these parts: Exhaust manifolds (maybe OEM 12630741) 10x Studs (manifolds for the engine). 10x Nuts (manifolds to the engine) I have a 2012 Chevrolet Malibu (gen 8) 2.4l LTZ. Does anyone have the ability to...
  3. Gen 9 Modifications
    So i have a 2016 Malibu premier. Basically i have a stock exhaust system except for i did resonator Delete and put on some flow master super ten series mufflers it’s loud right now. I was wondering if i un hook the exhaust from the cat (requires you to un screw a few bolts) and push it off to...
  4. Gen 7 Problems/Service Issues/Troubleshooting
    Is it possible to swap a exhaust manifold/cat conv. From a 2009 malibu 2.4 with 4speed trans with an exhaust manifold and catalytic converter from a 2011 malibu 2.4 with 6 speed trans? Had to replace mine twice in less than a year and it's costing me a fortune.
1-4 of 4 Results