Does the Performance Exhaust (PE) pass Laguna Seca's 92 dB sound limit?

[Kgolf31]

Originally Posted by AGAV13

Any update on this? I want to attend a LRP Drivers Education day and the restriction is going to be 86dBA. Has anyone gotten a confirmed reading? Should i be worried about having an issue?

86 DB? That sucks.

You'll probably bust with a stock exhaust, or just road noise.

Just lift and you'll be fine.

[Bullitt]

With PE and kittyless DP's, had no problems with the 90db sound limit there.

[crimsonsfo]

Originally Posted by Bullitt

With PE and kittyless DP's, had no problems with the 90db sound limit there.

Had no issues whatsoever with BMW PE at Laguna Seca back in May for an HPDE.

[Little1er]

Anyone trued PE w/ Kittenless downpipes by the sound booth? I have a track day coming up in a few weeks?

[Little1er]

Originally Posted by Bullitt

With PE and kittyless DP's, had no problems with the 90db sound limit there.

Did you let off or swerve away from the soundbooth?

[Bullitt]

^ Not at all. Full throttle. But with stock boost (< 9psi). Your RB Turbos and significantly higher boost levels could result in a much louder exhaust, but if they flag you, just lift or short shift before the booth for the rest of the day.

[wjk_glynn]

Originally Posted by Bullitt

...if they flag you, just lift or short shift before the booth for the rest of the day.

I thought if they flag you, you have to show actual modifications before you're allowed back on track?

Hence the run to OSH / Home Depot to make some infamous "Laguna Seca pipes", to point away from the booth...



Karl.

[Bullitt]

Originally Posted by wjk_glynn

I thought if they flag you, you have to show actual modifications before you're allowed back on track?

Hence the run to OSH / Home Depot to make some infamous "Laguna Seca pipes", to point away from the booth...

Karl.

Karl, I thought it was simply two flags and you're out. There are cars that absolutely need those redirecting pipes, and I assume many drivers simply don't want to take the chance after the first flag. Or their right foot is hopelessly too heavy.

He can always switch his JB4 map or dial the boost down which could qualify as a change. Unless they don't allow engine software changes to address the sound issue...