$$$ Finally. Advice needed.
Passenger side cat is broken and I'd like to replace it, but keep it CA street legal. Are the high-flow cats worth it, and do they pass smog? Had some problems with the electrical last year, and ended up having to get the PCM replaced. Ever since all that crap I've been getting 10-13 mpg, regardless of how I drive or city/highway. This is obviously crap, think it needs a tune and replacement of stuff like the o2 sensors maybe.
So basically my goals are to replace the whole exhaust back, starting with the cats. Then get a decent tune to hopefully increase mpg a little and add some power at the same time. Also get the plugs/wires replaced too.
Is this doable with my budget or do I need to save more? What are some good performance shops around SoCal(the closer to Riverside the better) that aren't too expensive?
I have no tools and a very limited knowledge of how to work on the car, so installing myself is pretty much out of the picture unfortunately, unless someone here was willing to help me for a reasonable price.
130 for o2s.
600 for a NICE catback and tips
new cats should be less than 200
that leaves 500+ dollars for a tune. your car will be running stronger, getting more mpg, and have cool tips when youre done
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On OBD2 cars they have to be replaced with OEM parts.
Anyone have any insight as to why my gas mileage is so poor and what could be done to fix it? All maintenance has been kept up to date. Fuel filter replaced and injectors cleaned recently. Can a broken cat cause such a drop in mpg? o2 sensors? Running too rich? What else?
I just don't know wtf, before the PCM replacement/accident, got 18/26+ mpg. Now it gets 13 mpg if I'm lucky. The power is there, still beat all the cars I should, but the gas is just killing me, don't even want to drive, so I have to get this fixed before I do some performance mods.
Anyone have any insight as to why my gas mileage is so poor and what could be done to fix it? All maintenance has been kept up to date. Fuel filter replaced and injectors cleaned recently. Can a broken cat cause such a drop in mpg? o2 sensors? Running too rich? What else?
I just don't know wtf, before the PCM replacement/accident, got 18/26+ mpg. Now it gets 13 mpg if I'm lucky. The power is there, still beat all the cars I should, but the gas is just killing me, don't even want to drive, so I have to get this fixed before I do some performance mods.


