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Discussion Starter · #1 ·
I have a DTM upswept backbox on my e36 atm, i had i given to me as a replacement for a broken one, but its just too damn loud! I cant stand it, does anyone recommend any subtle backboxes that wont be loud and are resonably cheap??

Thanks for your help :thumbsup
 

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get a standard one and cut the backbox open, take all the insulation out and then weld it back up it will be the same size so looks stock but have a bit more grumble to it
 
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