i have a stock d15b2 and have to get it smogged real soon. i bought some guaranteed to pass and am debating on whether to buy a new cat and new oxygen sensor. does anybody know a good smog shop in the san mateo-south san francisco area and should i get a new cat/oxygen sensor? what ya think

 

well before you waste your money on cat and o2 why don't you go to a "pass or don't pay" place...most smog stations do that and usually have a big sign advertising it....that way if you pass then everything is gravy...but if you fail then you can tell what you need to buy to pass the next time.

just saving you time and money.

 

oh yeah....and for the pure sake fo experimentation and helping us out...try running your car without the "guarantee pass" crap and see what happens, if you fail then post your printout....then put the "guarantee pass" for the next time and try running it again and post your numbers...

i am sure we are all curious on exactly how well this stuff works.