Hey guys, new to the forum (obviously)

Just wondering how installing a test pipe would affect my mpg. Searched and to know avail.

Thanks for your help guys.

 

there shouldnt be any affect on MPG.

 

Thanks man, this should be a decent upgrade from the busted cat that's currently in my car.

 

it could mess up your o2 sensor. just a warning

 

wont 'mess up' anything, but you could get a CEL from an incorrect secondary O2 reading. a spacer will solve that problem. search if you dont know what im talking about, its been more then covered.

 

when i did something similar to my car it messed up the o2 sensor and made my engine put the wrong amount of fuel/air ratio and fu(ked up my mileage

 

the primary O2 sensor is the one that has an impact on fuel delivery and that is located before the CAT, so replacing anything after the sensor wont impact the sensors reading. it will however affect the secondary O2 reading but that has nothing to do with fuel, its for emissions purposes only. your problem might have happened at the same time but should not have been caused by the test pipe itself.

 

oh, ok. thats wierd that they happened at the same time, but i guess theres no such thing as coincidence with our cars things happen to break at the same time

 

I know what you're talking about in regards to the CEL error. I have one anyway with the bad cat. After doing extensive research, think I'm gonna go with the Labree HFC. Haven't heard or seen any gripes about it. A little less HP, but I can deal with that. Thanks again.

 

labree makes a good product, i know several people who like their stuff. when i finally decide what im doing to my engine, il probably be getting a labree HFC to pass emissions. what do you mean 'a little less HP'? like compared to a test pipe? you gain almost the same amount, the 3-8 horsepower difference is completely unnoticeable.