Exhaust back box
Ive got a miltek back box with a supersprint centre section.
Now i want to change the back box as i cant stand the noise of it.who has a back box that doesn't have such a strong rasp to it?
Supersprint centre section has quietened the rasp a bit but i didn't realise when i bought the back box that it was gonna sound like it.
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Bmw in the blood!!
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