I would agree. Anytime the engine is running more efficiently it makes more power per unit fuel. That means I use less fuel to do the same work. Gas saved.Wonderful news and great information for the archive here on the board! Thanks for posting it up.
I've always been a bit dissappointed with my fuel economy. I check it regularly and haven't been above 24.6mpg yet. I've seen others report 28 (IIRC) and your post makes me wonder if the cats play a role there. What do you think?
I never used to have to worry about spinning tires unless I really flogged it. Now it is quite easy making a curb lane turn (right), especially on an incline. I fear I will now be eating tires. (a good problem considering the alternative).
(Rockauto)For future reference, please post where you order from and if you don't mind, share how much you paid for all of it.
MFG / Part # / Desc.
Walker 464 16413 - Manifold/TWC
Walker 464 16414 - Manifold/TWC
Eastern Catalytic EMI 40627 - Catalytic Converter
Eastern Catalytic EMI 40626 - Catalytic Converter
NTK NGK 22097 - O2 sensor
NTK NGK 22118 - O2 sensor
NTK NGK 22100 - O2 sensor
NTK NGK 22115 - O2 sensor
Beck Arnley 037-8102 - Exhaust Manifold Gasket Set
DENSO 673 6005 - Ignition Coils x6
Mazda AJTT-18-110 - Spark Plugs x6
Mazda 9XG0-17-32S - Exhaust Manifold Studs x12
Mazda 9XG0-17-0602 - Exhaust Manifold Nuts: x12
Total Cost : $1342.67 USD (price also included engine air filter, oil filter and replacement rear wiper blade)
PICTURED HERE WITH FELPRO GASKET