cant find anythign on this wheni searched. i just bought my car back from the guy i sold it to . he put an engine swap.. just a regular d15b2. i did an mpfi swap and he just kept it on. drove the car today and as i was down shifting the car backfired... is backfiring always a bad thign or is it safe sometimes.. its got a louder muffler on it too.
thanks

 

Its probably the larger exhaust... Its pretty common for Hondas to do this when you upgrade the exhaust... Mine did it when I added on an axle back in my CRX... My g/f likes to poke fun and says my car farts... Nothing too worry about... So long as theres no flames shooting out of the exhaust...

 

like Exempt said, backfiring is nothing to worry about
-melloman

 

cool just wondering because i sold my car and the guy put in another enginesame as the stock one. its acctually the third engine in the car i had to swap one in when i bought it. but anyways. i had the muffler on my car with the old engine and it never backfired. this is why im asking. i just bought the car back from the guy .. im very happy seeing as i had a dsm from hell experience. im excited about having awesome gas milage again.

 

yea ive got a fat cannon on a stock pipe in my 91 hatch and it does nothing but back fire when i down shift i wouldnt worry about it i actualy kind of like the noise.

 

its not a fart cannon its got the ovalish muffler but it is a free flow muffler with a bigger tip.