VersaTune User Forum

Posted: **April 15th, 2021, 1:55 pm**

And is mild safe fir stock headers with cats?

Posted: **April 17th, 2021, 2:34 am**

The difference is in the ignition retard. More ignition retard gives you louder pops, but that also puts more stress on the cats. Mild tune is recommended for cars with stock cats.

VersaTune User Forum

What's the difference between mild and aggressive crackle tune?

What's the difference between mild and aggressive crackle tune?

Re: What's the difference between mild and aggressive crackle tune?