06 Mazda 3i Magnaflow Cat-back questions or comments?

Question

I have just installed this on my car and would like to know what other people think of it or if you have any questions.

I also have a K&N airfilter. But I don't know about the whole 2 hours thing. Maybe I should try it. I have noticed increased gas mileage from the Filter+Cat-back combo. I will calculate soon and let you know.

Answer 1

I have no idea, BUT try to (discretely) find out what it will do to your warranty. I just bought (in April) a 3s 5 door. I ask the person who was going through the owners manual with me about synthetic oil and she hum-hawed around, but, sorta, implied it would affect my warranty. I didn't pursue it. I just put a K&N air filter on mine and it dropped the mileage by 2.5 mpg. I could hear the better breathing. I have been using K&N for 35 years on motorcycles, trucks and cars, and they always got me 1 to 3 more mpg and a little boost in power. I felt the boost but, the mileage thing. I emailed K&N tech support and was told " you need to disconnect the negative battery cable FOR 2 HOURS, this allows the computer to reset. he suggested I take it off at night and reinstall it the next morning(it seems that with less than 2 hours the battery & back up battery will not deplete and, therefore, not allow the computer to reset. He said this applies to newer FI cars.

Answer 2

Its not a mazda but I did help put a cat-back on my friend Honda Civic and it run great! It has a very good sound to it. U can tell that d car run faster but he as so has headers and a intake with some mod chips. I would love 2 get one 4 my car if I had d money!!!