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3inch to 2.5 back box.

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Old 19 June 2021, 10:39 AM
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RobsyUK
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Question 3inch to 2.5 back box.

I really like the Genome backbox but want to fit a 3inch downpipe & midsection. Would having 2.5inch back box strangle the ponies.
Old 19 June 2021, 11:02 AM
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1509joe
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Yes but really depends how many you've got or want.
Old 19 June 2021, 11:38 AM
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Originally Posted by 1509joe
Yes but really depends how many you've got or want.
I'm not bothered about what's there or what can be lost but more if it would cause damage being restrictive. - like a bung in the back and then flooring it
Old 19 June 2021, 11:55 AM
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Being slightly restrictive no it shouldn't it would possibly make it run slightly richer.
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Old 22 June 2021, 12:51 AM
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jaygsi
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What's the point of fitting a 3" system then? Why not just go for full 2.5" system.
Old 22 June 2021, 10:05 AM
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Originally Posted by jaygsi
What's the point of fitting a 3" system then? Why not just go for full 2.5" system.
I plan to go aftermarket but plan to do it in a way that helps resale. 3inch is better for all parties but I do like the genome box. If I ever wanted to change the back box for 3inch I could at a later date.
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