Group N rally exhaust???????
10 March 2005, 08:09 AM
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Group N rally exhaust???????
Anyone know anything about these exhausts?? Want something different from the norm and found this but cant find any info bout them with regards to power gains n noise etc. Help?????
10 March 2005, 10:50 AM
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A true Group n exhaust has the same style of neck design at the turbo outlet as a standard downpipe, ie a relatively small outlet. These aren't the best design for maximum power, you want an open necked one for that. My mates is a Mongoose and on his STi6 its recently been measured at 102dB. IIRC my old Scoobysport was about 98dB.
10 March 2005, 01:21 PM
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Originally Posted by mark@wrx
A true Group n exhaust has the same style of neck design at the turbo outlet as a standard downpipe, ie a relatively small outlet. These aren't the best design for maximum power, you want an open necked one for that. My mates is a Mongoose and on his STi6 its recently been measured at 102dB. IIRC my old Scoobysport was about 98dB.
Many thanks!!!! Didnt realise that. Maybe ill look at having a Mongoose. Just want something that sounds bit different from everyone elses!
10 March 2005, 01:23 PM
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Originally Posted by p1doc
tsl do a lovely group n backbox,liveable for a 2 year old but loud enough on full acceleration
martin
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10 March 2005, 02:05 PM
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If your after something a bit different, you could try the OMP GPN or GPA exhaust available from Demon Tweeks. Only mild steel so will rust, but its cheap and should give a nice soft sound rather than the tinny sound you get with stainless steel.
Dave.
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10 March 2005, 05:39 PM
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True GR N exhausts are also quick release.They have springs(sleeved) rather than bolt type flanges.This makes them rattle a bit more too.So if you don't know about it you may think something is loose under the car 
10 March 2005, 06:03 PM
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Just been chattin to various suppliers and dont think mild steel is the way to go - and right about the rattles!!
Just been quoted £430 for Magnex downpipe, centre and back section. Been looking around and seems a good proce. What dyu think?
Just been quoted £430 for Magnex downpipe, centre and back section. Been looking around and seems a good proce. What dyu think?
10 March 2005, 06:04 PM
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Originally Posted by DaveW
If your after something a bit different, you could try the OMP GPN or GPA exhaust available from Demon Tweeks. Only mild steel so will rust, but its cheap and should give a nice soft sound rather than the tinny sound you get with stainless steel.
Dave.
Dave.
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