smudgedon Posted February 20, 2013 Share Posted February 20, 2013 nismo does sound good, very expensive though Berk decats, XYZ motordyne and Nismo backbox is a great combo but no way cheap Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted February 20, 2013 Share Posted February 20, 2013 exhaust is like a tuned instrument, change the diameter, bends, shape, length etc all have an impact on sound. I spent 6 months designing my own exhaust and then £1300 for it to be custom built. results =nice sound and no drone. Japspeed are one to avoid. nice set of berk hfc and you'll be a lot better. a lot of the rasp comes down to the poor design of the original system for noise. also if you went the decat route you'll need to remove them every 12 months for the MOT. Quote Link to comment Share on other sites More sharing options...
The Chubby Ninja Posted February 20, 2013 Share Posted February 20, 2013 biscuit have you any pics of your exhaust? Quote Link to comment Share on other sites More sharing options...
The Chubby Ninja Posted February 20, 2013 Share Posted February 20, 2013 purely for porn reasons Quote Link to comment Share on other sites More sharing options...
CrustyCrab Posted February 20, 2013 Share Posted February 20, 2013 Berk decats, XYZ motordyne and Nismo backbox is a great combo but no way cheap +1 Decats and MD XYZ is sweet. I've have had that for a while and it's only loud when you want it to be Quote Link to comment Share on other sites More sharing options...
smudgedon Posted February 20, 2013 Share Posted February 20, 2013 Berk decats, XYZ motordyne and Nismo backbox is a great combo but no way cheap +1 Decats and MD XYZ is sweet. I've have had that for a while and it's only loud when you want it to be Mine's loud all the time because of the 3" mid pipe after the XYZ Quote Link to comment Share on other sites More sharing options...
glrnet Posted February 20, 2013 Share Posted February 20, 2013 Berk decats, XYZ motordyne and Nismo backbox is a great combo but no way cheap +1 Decats and MD XYZ is sweet. I've have had that for a while and it's only loud when you want it to be Mine's loud all the time because of the 3" mid pipe after the XYZ It's loud Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted February 20, 2013 Share Posted February 20, 2013 biscuit have you any pics of your exhaust? since then the car has been painted and de rusted under the car, the rear bumper has fallen off and a new aftermarket bumper is due to be fitted, thos also means a slight redesign of the exhaust at the rear to fit the cutouts in the new bumper. and the rust on the arches is about to be cut out qnd re welded as well. also depending on cash the plan id also to add in 2 exhaust bypass valves that will exit just infront of the rear wheels. long term plan is to put in a racing manifold but that's another £2k so going t save up for that. Quote Link to comment Share on other sites More sharing options...
CrustyCrab Posted February 20, 2013 Share Posted February 20, 2013 Mine's loud all the time because of the 3" mid pipe after the XYZ It's loud Actually yeah it is I definitely heard you going down the M25 from mine.... Not bad Quote Link to comment Share on other sites More sharing options...
The Chubby Ninja Posted February 20, 2013 Share Posted February 20, 2013 looks brilliant. the braces certainly look better than the japspeed ones . whats the reason for the cross section? is it for better sound? Quote Link to comment Share on other sites More sharing options...
tony.r123 Posted February 20, 2013 Share Posted February 20, 2013 biscuit have you any pics of your exhaust? since then the car has been painted and de rusted under the car, the rear bumper has fallen off and a new aftermarket bumper is due to be fitted, thos also means a slight redesign of the exhaust at the rear to fit the cutouts in the new bumper. and the rust on the arches is about to be cut out qnd re welded as well. also depending on cash the plan id also to add in 2 exhaust bypass valves that will exit just infront of the rear wheels. long term plan is to put in a racing manifold but that's another £2k so going t save up for that. Nice exhaust, very nice welding on the "X" pipe Quote Link to comment Share on other sites More sharing options...
smudgedon Posted February 20, 2013 Share Posted February 20, 2013 Mine's loud all the time because of the 3" mid pipe after the XYZ It's loud Actually yeah it is I definitely heard you going down the M25 from mine.... Not bad Really?! epic Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted February 20, 2013 Share Posted February 20, 2013 it allows the exhaust gases to scavenge, this helps balance the 2 banks of the engine, improves performance, and noise, another alternative is an h pipe. which is slightly better sound, but slightly less performance. Quote Link to comment Share on other sites More sharing options...
The Chubby Ninja Posted February 20, 2013 Share Posted February 20, 2013 every day is a school day. very nice job Quote Link to comment Share on other sites More sharing options...
WhackyWill Posted February 20, 2013 Share Posted February 20, 2013 Wow ..You were robbed..£192..are you sure they did it properly..and your were not shafted twice..? Quote Link to comment Share on other sites More sharing options...
wanted Posted February 20, 2013 Author Share Posted February 20, 2013 I've been out for a while and clocked up 60 miles, it seems to be losing the edge on the rasp, so i'm warming to it VERY slightly Told ya not to get Japspeed didn't I lesson learned exhaust is like a tuned instrument, change the diameter, bends, shape, length etc all have an impact on sound. I spent 6 months designing my own exhaust and then £1300 for it to be custom built. results =nice sound and no drone. Japspeed are one to avoid. nice set of berk hfc and you'll be a lot better. a lot of the rasp comes down to the poor design of the original system for noise. also if you went the decat route you'll need to remove them every 12 months for the MOT. D There's no drone at all, and it's very civilised under 3k, it's just the rasp but it seems to be dulling. I think the berk decats are what i'll replace them with. No mot worries for me Quote Link to comment Share on other sites More sharing options...
Neilp Posted February 20, 2013 Share Posted February 20, 2013 I run japspeed decats on track and theyve never flawed! Gave them a proper pounding! I run decats with buddyclub system... silencers out always! Quote Link to comment Share on other sites More sharing options...
Neilp Posted February 20, 2013 Share Posted February 20, 2013 meant to say, rasp isnt that bad. Maybe your exhaust is too quiet Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted February 20, 2013 Share Posted February 20, 2013 exhaust will bed in as it cokes up, tone will deepen, the rasp might subside a bit more, need about 300 miles at least to get a better idea. 1 Quote Link to comment Share on other sites More sharing options...
wanted Posted February 20, 2013 Author Share Posted February 20, 2013 meant to say, rasp isnt that bad. Maybe your exhaust is too quiet I like your thinking but i'm paranoid now of making it worse. i'll see how it sounds in a few days Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted February 20, 2013 Share Posted February 20, 2013 f it makes you feel better the od m3 witht e straight 6 had a raspy note and some people think it sounds sporty and racey. Quote Link to comment Share on other sites More sharing options...
wanted Posted February 20, 2013 Author Share Posted February 20, 2013 f it makes you feel better the od m3 witht e straight 6 had a raspy note and some people think it sounds sporty and racey. That's exactly how i described it to my brother. I let him take it up the road and it did sound better from the outside. Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted February 20, 2013 Share Posted February 20, 2013 you'll find a new rear box will add more tone. lower down the octave range, and more of a burble. it won't remove the rasp, and it won't hide it under high RPM, but it will make a nicer noise. the only decat setup that won't rasp is the motordyne art pipes as they have funny dildos on them that tune the rasp out. 1 Quote Link to comment Share on other sites More sharing options...
wanted Posted February 20, 2013 Author Share Posted February 20, 2013 you'll find a new rear box will add more tone. lower down the octave range, and more of a burble. it won't remove the rasp, and it won't hide it under high RPM, but it will make a nicer noise. the only decat setup that won't rasp is the motordyne art pipes as they have funny dildos on them that tune the rasp out. Do you know where i can get some of those or a rough price? Quote Link to comment Share on other sites More sharing options...
Arran Posted February 20, 2013 Share Posted February 20, 2013 Decats sound awesome with the right system mates to them! Quote Link to comment Share on other sites More sharing options...
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