suprasize Posted October 8, 2011 Share Posted October 8, 2011 Anyone done this? Alot of people opt for aftermarket but was wondering if anyone has BPUd using a stock system? Does it greatly effect performance staying stock? Reason being is ive found out any exhaust over 90db is classed as illegal? Was working with sone traffic officers and they got a guy fora defective exhaust as it was over 90db? Crazy. Quote Link to comment Share on other sites More sharing options...
ripped_fear Posted October 8, 2011 Share Posted October 8, 2011 I always though it was illegal is it was 3db over stock, so im sure if you decat a stock system which you would with bpu it would up the sound to an illegal level. Quote Link to comment Share on other sites More sharing options...
Abz Posted October 8, 2011 Share Posted October 8, 2011 I just took out the baffle from my RSR exhaust & the difference is mind boggling! Get a bung in the exhaust & your sorted! Obviously this means using an aftermarket exhaust but at least you can enjoy it too. Also to add, isn't the stock exhaust quite restrictive? Quote Link to comment Share on other sites More sharing options...
dude Posted October 8, 2011 Share Posted October 8, 2011 Anyone done this? Alot of people opt for aftermarket but was wondering if anyone has BPUd using a stock system? Does it greatly effect performance staying stock? Reason being is ive found out any exhaust over 90db is classed as illegal? Was working with sone traffic officers and they got a guy fora defective exhaust as it was over 90db? Crazy. There is NO max DB level for an exhaust, how do I know, I was stopped at a VOSA check and they told me that, its at their discretion and has to aceptable for a vehicle of that type. Quote Link to comment Share on other sites More sharing options...
fastcar Posted October 8, 2011 Share Posted October 8, 2011 i would say that is rubbish im sure that the lambos and ferrai i have seen are much louder then 93db Quote Link to comment Share on other sites More sharing options...
Abz Posted October 8, 2011 Share Posted October 8, 2011 i would say that is rubbish im sure that the lambos and ferrai i have seen are much louder then 93db I think the reading is from a stock exhaust so your aftermarket one has to be similar. Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted October 8, 2011 Share Posted October 8, 2011 the stock exhaust is too restrictive for bpu. use a tenbe medalion if you want good flow with no sound. Quote Link to comment Share on other sites More sharing options...
suprasize Posted October 8, 2011 Author Share Posted October 8, 2011 the stock exhaust is too restrictive for bpu. use a tenbe medalion if you want good flow with no sound. Any suppliers you know of? Quote Link to comment Share on other sites More sharing options...
RHochreuter Posted October 8, 2011 Share Posted October 8, 2011 I got my Tanabe Touring Medallion from Whifbitz. VERY quit Quote Link to comment Share on other sites More sharing options...
tomgeer Posted October 8, 2011 Share Posted October 8, 2011 I just took out the baffle from my RSR exhaust & the difference is mind boggling! Get a bung in the exhaust & your sorted! Obviously this means using an aftermarket exhaust but at least you can enjoy it too. Also to add, isn't the stock exhaust quite restrictive? Any tips for removing the bung Abz? mines an RSR too, but it's stuck solid. Quote Link to comment Share on other sites More sharing options...
Bailey. Posted October 8, 2011 Share Posted October 8, 2011 Slide hammer works a treat, Quote Link to comment Share on other sites More sharing options...
Abz Posted October 8, 2011 Share Posted October 8, 2011 Any tips for removing the bung Abz? mines an RSR too, but it's stuck solid. I don't think mine had been out for a long time dude! Just kept pulling at it & it came out with me nearly doing a backflip! Remember you need 2 spanners to take it off. Oh & it makes a HUGE difference to both sound & performance! Quote Link to comment Share on other sites More sharing options...
tomgeer Posted October 8, 2011 Share Posted October 8, 2011 Slide hammer works a treat, Good idea, i'll see if I can borrow one, thanks. I don't think mine had been out for a long time dude! Just kept pulling at it & it came out with me nearly doing a backflip! Remember you need 2 spanners to take it off. Oh & it makes a HUGE difference to both sound & performance! I know mate, I bought the bung off Keron, when I got the car it didn't have one, really drains the power but much nicer to drive when going long distances. Why do you need two spanners to take it off? Quote Link to comment Share on other sites More sharing options...
SteveC Posted October 9, 2011 Share Posted October 9, 2011 I got my Tanabe Touring Medallion from Whifbitz. VERY quit Me too. It's unbelievably quiet and that's with a pair of 3" decat pipes. Quote Link to comment Share on other sites More sharing options...
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