Track day noise choices - Decat OR G pipe?

[eean]

Bonjour,

Steve, I know you tend to favour secondary "G" (or "J") pipes over primary/Cup bypass pipes, for most of us, who drive our 911's on the road.

This enquiry pertains to your prefered choice, if you had to choose between a cat bypass and a "G" pipe?

My concern for some trackday use, both near and far (eg UK), is that with both in place, I would exceed local static and drive-by noise tests.

Any thoughts?

Best ~

[Steve]

Hi,

For maximum performance (and torque) on those track days, use the cat bypass & G-pipe together.

For road use where noise will be an issue, keep the secondary muffler and run the cat bypass.

[eean]

Thank you.

[Babalouie]

So it's the stock cat that's the weak link in the 964 exhaust, Steve?

[Steve]