Yes, tuning as a general definition is messing with the "stoichiometric ratio" (the air/fuel ratio) across your power band (the RPMs). This changing of the ratio usually results in a different sound.Thanks for advice, I appreciate that, really don’t want to throw away the money if smog rules demand I put it back on. So, a tune will modify the car’s sound as well?
In almost all cities just straight up deleting is usually too loud to comply with code.Wow this is great info! Thanks.. I have called a few muffler shops, one saysthey can just do a muffler delete and it would not be too loud at all, the other says, no..it will be Loud and that I need to buy a particular performance muffler. Not sure who to believe.
If it's too loud then u can guesstimate how much of a muffler u really need.What you can do is ask if the shop has a decibel reader, then have them take measurements of how loud it is with no muffler, and compare it to the legal limit.
(Just find the law)
Remember also that when your redlining its obviously going to be louder, so you should be seeing what the sound output is when your going the speed limit or your normal driving speed.
Many stock cars have exausts that are already too loud, just like they have cars that can go too fast, it's just that your not supposed to rev/drive that high.