I have a 2005 mazda 3 S. I was gonna put a glasspack on but I‘m being told it‘s rediculously loud. My friend has a whole exhaust system and I think it sounds cool, but I don‘t have a ton of money to blow. I‘m thinking maybe under 300? Recommendations?
If your car is still under warranty changing the exhaust will void that warranty.
To get a deep agressive tone is not easy, particularly from a low cc 4 cylinder car. I got a cat-back exhaust system pretty cheap (440 AUD) fully fitted for my mitsubshi 6 cyclinder (which contains 2 1/4 piping plus a sports muffler). Sounds great. A little bit of research will tell you whether the 3 has 1 or 2 cat's. I would think it only has 1, but Im not sure. Even then, I dont see how it will make much of a difference if the cats are linked in a serial fashion (as in the gas goes into Cat 1, then Cat 2, then the muffler then out). Go Ebay only if its a trusted source and you can fit the thing yourself (you'll need welding equipment and good knowledge of how to do it). I would ring up a few places and ask them if they have put a cat-back system on a 3 before. Only if they have will they be able to tell you the ins and outs of doing it.
