Installed new exhaust today at Haibeck

[Z Factor]

You will notice a big difference once you put on headers, especially if you leave off the cats.

Glad to hear Mark is still making ZR-1 owners happy.

[XfireZ51]

Originally Posted by Z Factor

You will notice a big difference once you put on headers, especially if you leave off the cats.

Glad to hear Mark is still making ZR-1 owners happy.

Thanks. I plan on leaving cats on. Not convinced that modern design cats rob very much power.

[Z Factor]

Originally Posted by XfireZ51

Thanks. I plan on leaving cats on. Not convinced that modern design cats rob very much power.

There is a measurable difference, all be it a slight one. Adding an x-pipe will also make a small difference in HP & louder sound. All in all using cats will help to reduce the db level if that is what you would prefer.

I am sure you are happy with the look as well as the new exhaust note.