Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

Got a corsa sport and was wondering if i should put a 4" single back box on it as the one on at the minute isnt loud enough as it is standard. Has anyone got any pics of a 4" one as i not sure if it would be too big. Cheers

Don't put a 4 inch one on unless you are going to be shooting melons if you want it louder just put a normal back box on and decat ir, that's what stops most of the sound. Or go for a full straight through with a decat, centre race tube and a straight through cherrybomb on the back

i wouldnt go eny bigger than a 3 inch, but thats jst wot i prefer, depends o ur taste

i had a 4 inch on mine and it was pretty nice, but ive heard 2 inch decat ones that are louder. just depends what engine u have - u can't decat a 1.2 16 valve like i had

defo get ur middle box taken out and replaced with a bit of pipe tho - cost me 30 quid and it made a big difference lol

Depends how loud you want it. here is a pic of my sportex 4" backbox, makes a great noise, not too loud so the whole country hears it. but loud enough the people round the corner can

3inch backbox and for added loudness cut out ur middle silencer
dont think it will add 400hp tho
only makes it sound fast