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    duplex system

    hi i have brought two twin 3" backboxes for my astra mk4 and have been told it will cost from £350 -£400 to get them fitted and if it is poissable to fit them i just woundered if anyone nos if they can be fitted with out any huge changes ??

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    400????????? thats just stupid

    cost me about that for a full cat back duplex system

    what exactly did u ask for? a cat back or just the rear boxes fitted?

    if u can weld or know someone who can, or at least know of a good cheap exhaust place then it will take no time at all

    new flange off the end of the centre section, Y-splitter directly after the flange then 2 lengths of pipe running to each backbox. run it behind the spare wheel well - no problem

    you will have to cut off the rear towing eye but thats about it


    why not post in ur regional forum - and ask the local members for some recommendations if u dont know anyone ur self

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    no it was a cat back i asked for with a duplex system and apparently you need a special box or something and yea i thought the tear towing eye would have to go but what it better then a cat back or the y frame ? or is there not much difference in sound and performance ?

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    I paid £400 on my fiat punto for a duplex cat-back exhaust with an oval either side from Rebel Powerpipes in Barton-upon-Humber.

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    :O yea i thought that was abit steep i had the quote off powerflow in gloucester but i have just done a quote with longlife and they just quoted me £300 and 10% of if i get it done within a week

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