Turbo kits been installed running it with what came out of the box problem!!!!!!!! Muffler I have apexi n1, Resinator three inch pipe all the way to muffler. Is there any way to cut some of the noise? My car sounds like a civic. Can anyone fix this please???????

 

do you have a cat or are you using test pipe?

 

You're straight-through N1 is going to be loud, no matter what. If you prefer a quieter setup you need to go with something like a Flowmaster 50 series.