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Welcome to Hartech, the UK's leading Independent Porsche engine specialists, located in Bolton, UK

993 rsr mufflers - too loud for a 98db drive-by limit?

B

badlands

Montreal
Joined
5 Feb 2015
Messages
568
Have any of you guys with this setup attended a track day with 98db driveby limit and not been black-flagged for noise? They seem quite loud but maybe that's just the bassier noise vs. standard, rather than a volume increase.

It's Donington specifically, got pending invite from father-in-law to join him on a track day there later this month. Just got car back with new Bilstein PSS10s fitted so super keen to try them out on track before the winter sets in!
 
I have RSRs, sports air box and large tail pipes and I have had no problem at Goodwood ....... if that helps ...... :dont know:
 
Yes that really helps as it seems Goodwood is also 98db on most days
 
for reference, just back from Donnington 98db limit drive-by day, and the 993 was absolutely fine even on wot down the main straight. That's with the RSR-style mufflers and standard airbox + no engine tray.


for any 991 guys, stock 991 GT3 got black flagged twice pretty much immediately for noise, had to go home. Same with a new R8 I think. The 997 gt3 was fine.
 
I got black flagged there and sent home in a ST205 WRC Celica. I've measured my 993 at 102db at 3/4 throttle as a static test but not drive by obviously.
 
badlands said:
for any 991 guys, stock 991 GT3 got black flagged twice pretty much immediately for noise, had to go home. Same with a new R8 I think. The 997 gt3 was fine.
Click to expand...

Interesting. I was at Bedford at the weekend and a stock 991 GT3 was black flagged almost immediately - my 993 (no cats - standard backbox, no undertray and motorsound airbox) was fine.
 
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