The hose between the mas and the plenum is bent curved, bowed out of round would that have an effect?
Since the p172 and p174 code is lean condition it would seem like the engine is getting too much air.
with that being said: I also get those two codes with my stock intake.
Some people say it can cause your engine to run lean due to increased air flow. However I put the stock air cleaner back on and the same thing happens. I am going to put the Volant back on.
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