Quite Sidepipes?

[Cobrakiller]

I am thinking of putting side pipes on, but I am unsure if it is possible to get them quite enough to pass the noise test without loosing heaps of power. Any one done this, or do I just go with under car exhaust. My engineer says I can get an exception for the sidepipes.

[Rebel1]

Talk to Rob. He is a member here using the nick renovationinnov.
He was at my place recently and I was super impressed with how quiet his side pipes were.

[renovationinnov]

hi cobra killer
I have just passed the db test by 1 db with live side pipes
as before I have seen lukey mufflers in Brisbane & got my internals of the mufflers in the side pipes turn so as the vent/ scales inside are facing the direction of flow so as to in trap I have cats near my headers 200 ppm that's it no tother way for baffling was fitted
can send you some pics but only to mobiles [ as not that smart to be able to post
rob

[Dwight]

what is the DB level you must not exceed?

Dwight in Alabama USA

no DB requirement here so they can hear me 1 1/2 miles at 6000 rpms

[Cobrakiller]

I think the test involves a stationary test and a drive by test at wide open throttle, have to read up a little more on the test procedure but I think the noise level cant exceed around 92 db. Much the same as any current model car has to pass.

[Modena]

Different states do it in different ways, but in Vic I believe it's a stationary test and 89db