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Old 20 Oct 2008, 02:11 PM   #1 (permalink)
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Question exhaust !

hi all , i have an afterburner vortex back box on my subaru wrx 2006 now dont get me wrong it does sound nice but.... it isnt loud enough or "deep" enough tone to it ! ANY SUGGESTIONS
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Old 20 Oct 2008, 02:33 PM   #2 (permalink)
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Re: exhaust !

take the bung out??
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Old 20 Oct 2008, 02:34 PM   #3 (permalink)
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Re: exhaust !

hmm please explain ! wot bung .....
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Old 20 Oct 2008, 02:40 PM   #4 (permalink)
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Re: exhaust !

if i recall,some "BIG" bore rear boxes have a bung shoved in them to quieten them down,i know the Blitz Nur Spec n traits of that style system have them..
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Old 20 Oct 2008, 02:45 PM   #5 (permalink)
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Re: exhaust !

also to amplifie the sound of the zorst system,decat it or sport cat it and have a straight through centre section....that will des bring the "burble" out...
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Old 20 Oct 2008, 02:47 PM   #6 (permalink)
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Re: exhaust !

is the bung possible to reach without removing the backbox ??

if i decat it is it legal ?
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Old 20 Oct 2008, 02:50 PM   #7 (permalink)
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Re: exhaust !

bung,if there is, should be just in the rear of the pipe..

decat is legal,but wont pass an mot,not sure if you have mot's in Ireland,if decat is not adviable for emissions,get a sport cat n straight center section....job done..
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Old 20 Oct 2008, 02:53 PM   #8 (permalink)
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Re: exhaust !

yes we have MOT , ok sport cat and str8 centre section same as the backbox afterburner or would i be best getting another type
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Old 20 Oct 2008, 02:55 PM   #9 (permalink)
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Re: exhaust !

if your gonna do it,keep it all the same,n you should enhance the "burble" nicely..and get some good power gains too..
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Old 20 Oct 2008, 03:22 PM   #10 (permalink)
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Re: exhaust !

just wondering any other good mods to get it movin quicker !
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Old 20 Oct 2008, 04:00 PM   #11 (permalink)
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Re: exhaust !

a decent panel filter,K&N,good for 350 +bhp,remap the ecu,bigger turbo,the list goes on bud,as soon as you lift the lid on tuning a scoob,you need to feed the hunger for more n more power...lol
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Old 26 Oct 2008, 12:33 PM   #12 (permalink)
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Re: exhaust !

hello,

firstly , i would say 06 impreza's dont have the same kind of rumble that the previous ones havve. maybe something to do with the move from 2,0 to 2.5??!?!?

anyway, ive got a 2006 wrx AND ive got the afterburner vortex back box on mine and its plenty loud!! tearing angry b#astard loud.
but it wasnt like that until i decatted the middle AND removed the middle silencer.

your fine on the MOT just taking out the centre decat.. plus gettin rid of that middle silencer between the back box and CAT made it all the more grunty.
i did mine in stages so i sort of heard the noise develop.

you get nice pops and bangs too from it once the CATS off.

get one of these... Impreza Turbo 2006-2007 : Subaru Impreza Cat Pipe 2007

and one of these.... Impreza Turbo 2006-2007 : Subaru Impreza Afterburner Stainless Steel Centre Section

and you will have your rumble my friend....
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Old 26 Oct 2008, 12:35 PM   #13 (permalink)
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Re: exhaust !

oh and i forgot to add that the afterburner is made by hayward and scott... so you can buy direct from them if you want to.

and as for the little extras, get a bailey dump valve. never had any problems with mine, its not a too loud hiss plus it might be just my mind, but i swear it makes me bang and fart a bit more between gears
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Old 26 Oct 2008, 06:31 PM   #14 (permalink)
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Re: exhaust !

thanks ....i have a forge dumpvalve so should sound great ........does the car run right no lights on in the dash ???
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Old 26 Oct 2008, 07:54 PM   #15 (permalink)
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Re: exhaust !

An additional piece of advice would be to keep the exhaust sections you are removing, wrap em up nice and warm and keep them in the garage.
My system is straight through, down pipe, centre and rear section, with only the smallest of silencers at the tail, and it's damn loud.
The only problem I had is getting it through the MOT. The person who owned the car before me didn't keep these sections and I had to search to find a cheap used section (I'll be buggered if I'm paying full price for something I only use once a year for about 2 hours !!)
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