adam1942 Posted September 26, 2012 Share Posted September 26, 2012 I'm planning on doing a track day in 3 weeks time.. there is a noise limit of 98Db at 4000 revs, static from 1 meter at 45º.. I have a japspeed K1 with baffles. I have no silencers the only other part of the exhaust is the cats.. Any one got any ideas if I'd meet or be below the 98db limit? Be gutted if I've to take it off to do a track day! Quote Link to comment Share on other sites More sharing options...
kbeast35 Posted September 26, 2012 Share Posted September 26, 2012 Found in the exhaust section k1 vs k2 topic For info at 3/4 max RPM (static test) the bunged k1 is 93-94Db the unbunged k1 is 103-104Db Quote Link to comment Share on other sites More sharing options...
M13KYF Posted September 26, 2012 Share Posted September 26, 2012 FAR TOO FECKIN LOUD Quote Link to comment Share on other sites More sharing options...
SteveW Posted September 26, 2012 Share Posted September 26, 2012 My set up is OE cats, Stainless Y pipe, not sure what brand no markings, k1: With bungs last two trackdays were 93.7 and 94.1, no bungs has been 103Db and 103.9Db so you should be fine. However driving the coupe without bungs is simply headache inducing. Quote Link to comment Share on other sites More sharing options...
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