Will high flow cats make the exhaust louder without changing the sound too much? Dunno if I'm gonna delete mine or swap for high flow...

 

Delete them an clear codes for the o2 sensors w a tunner.... Simple , better sound, better power and makes tree hugging hipsters weep :-)

 

Good. I never miss an opportunity to make hippies cry.

 

Depending on the mufflers you have, you will get the dreaded trumpeting noise. Supposedly the x-pipe doesn't have the problem as bad as the h-pipe does. Seems more prevalent in the chamber mufflers but I also had the problem with Borla Stingers. Eliminated it with the Mac Prochamber though.

 

Cool. I'm thinking I'm just gonna wait and do long tubes. Thanks for the heads up man!