Hello. I hope I have the proper forum to ask this question. My mazda 6s broke down on the hwy the other day losing power and it was not able to accelerate above 30 mph. The TA-Transaxle light came on and it bucked when finally stopped. The dealer has several ecm codes that came up including the throttle body and manifold (I do not have all of the codes yet from them). They said that the entire manifold needs to be replaced and apparently in the mazda 6s this includes catalytic converter(s), 02 sensor, etc... they say the part alone is $900. I cannot find this on the web, does this sound correct? Also they will need to replace throttle body. I read plenty about this topic in the forums and there is an SB on it. Overall they said 2 grand and that does not guarantee we will fix all of the issues. opinions? anyone else have this happen? Car has high miles 120k. also recently replaced 3 of 6 coil packs.