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A cheap glass pack will knock off the drone Just a cat and no muffler will drill thru your head after a half hour
I couldn't tolerate the drone especially when the harmonics come together. I would definitely run a muffler.If you are looking for something inexpensive, get an eBay special.
Would a lack of back pressure cause the OBD II to flip out.
Quote from: zieg85 on September 12, 2017, 03:50:04 PM Would a lack of back pressure cause the OBD II to flip out. I know the topic is a little old but I didn't see where this question was answered or whether or not you got your muffler installed.The back pressure will not affect the OBD II. Its the downstream O2 sensor that will cause a check engine light to come on if you remove or gut your cats.