In my old rallying days the noise limit was 84 Dba. We used steel wool and an old U2 battery up the exhaust pipe if there was any problems!
You sure about that Taffmog? It's current 98 dbA at 2/3 maximum revs.
G701PCA was regularly 96/97 on a 3" Ashley but Ian Williams didnt seem too bothered by it. Neither did Ronnie Roberts, never picked me up on anything on that car!
Arwyn