Hi everyone.

I've got a scoobysport backbox on my sti7, and was wondering how loud it was. I'm thinking of doing a track day, but the noise limit is 103db(A) at 0.5m with the engine running at 3/4 of the rev limit. Any idea whether the backbox will exceed these limits?

Thanks,
Iain

 

I have a full de-cat (original)ScoobySport system on a classic, I got it tested at Goodwood and it registered just over 102db at 3/4 revs

It is a particually loud Scoobysport

Should give you some idea!!

Iain.

 

Cool thanks. I should be well within he limit then

Cheers,
Iain

 

Just a warning!!
At full throtle on a rolling road I was measured at 112db
though that was indoors.

They may have db meters on trackside!!

 

So if i wanted to do a track day, i would probably have to change my system! I have a full decat with Blitz exhaust and with the bung/baffle out, it was 118DB! If i put the baffle in, i dont think it will reduce it right down to 103DB. Doh

 

YOu could always use my twin pea shooter back box for Track days and another plus beside the noise would be, it'll sound a lot better than the bung

 

Money just guessing here but my blitz does seem a lot quieter with bung in certainly at high revs so surely 10% less rumble & thus OK?
Si

 

Nah ive got a twin box at home and a prodrive one but they are boring! lol. Plus its the hassle of changing it!

The Blitz exhaust with the bung in, still sounds much better than yours krade! lmao. Told you to go for Blitz or HKS

[Edited by M0NEY - 2/19/2003 1:24:10 PM]

 

its ok Money, I like the more subtle Afterburner and on another plus side my hearing is still working after driving to work

[Edited by Krade - 2/20/2003 8:37:00 AM]

 

lmao! Dont worry Krade, one day you will be one of the Jap boys and get a real exhaust system