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Straight centre pipe requires remap?

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Hi all,

As you may know i've recently purchased my first turbo impreza!

It has the PPP installed, but is a tad quiet for my liking.

Will fitting a straight through centre pipe affect the back pressure so much that it will change the performance of the car? (I.e will it require a remap)

Rest of the exhaust system is totally standard apart from the prodrive backbox.


Sent from my iphone using Tapatalk

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