billydc2 Posted January 13, 2015 Share Posted January 13, 2015 Hi I'm just about to buy a cobra but can't make out from youtube clips which to go for. What's the sound difference in 5 db? Is that a lot and how much extra drone does non res create? If anyone near South or West Yorkshire would be kind enough to take me out in theirs for 5 mins it would be appreciated. Cheers 1 Quote Link to comment Share on other sites More sharing options...
Gudzy Posted January 13, 2015 Share Posted January 13, 2015 My car's got a cobra non res and I'm from Halifax, West Yorkshire. I could take you out in mine although I've also got decats and a motordyne xyz pipe with HFC which should change the sound. You could buy the resonated one and then if its too quiet have the resonator cut out or try to do a swap. Quote Link to comment Share on other sites More sharing options...
mikejbry Posted January 13, 2015 Share Posted January 13, 2015 Well the dB scale is non linear and is actually a logarithmic scale, in simple terms in the case of decibels, 3dB actually represents a double in volume. Quote Link to comment Share on other sites More sharing options...
G1uk2010 Posted January 13, 2015 Share Posted January 13, 2015 Just had a cobra backbox and non res middle pipe fitted today. With low revs it's deep but not loud enough to **** the neighbours off. But when you get it over 2k it starts to come on strong and with your foot down it sounds like thunder lol... loving it, so much different to stock. 1 Quote Link to comment Share on other sites More sharing options...
350zed1993 Posted January 13, 2015 Share Posted January 13, 2015 Had a non res fitted for around 3000miles now and I love it ! In tunnel it sounds the dogs dangly bits. Also managed to set a car alarm off in the town centre with it . Only thought I could say is that it drones at between 60-70mph. 1 Quote Link to comment Share on other sites More sharing options...
billydc2 Posted January 14, 2015 Author Share Posted January 14, 2015 Ok so I get that the non res is loud and maybe a bit annoying between 60-70. Who's had experience with both res and non res? Is res really quiet? Quote Link to comment Share on other sites More sharing options...
billydc2 Posted January 14, 2015 Author Share Posted January 14, 2015 In fact wtf. I'm never going to get a sound described to me so just going to go for a non resonated. I will just regain my chav status from when I used to have a 205 gi with a 5" magnex í ½í¸®í ½í¸‚ Quote Link to comment Share on other sites More sharing options...
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