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[CTR247]

Hi guys,

I'm looking to replace the current aftermarket cat back exhaust system on my car (was on my EP3 when I purchased it) with an OEM B pipe and back box. I already have a new doughnut gasket and 2x nuts, bolts and springs to connect the the OEM B pipe to the back back and new 3 hole gasket that sits between the OEM cat and the B pipe but can anyone advise what size nuts and bolts are needed to connect the cat and the B pipe (has a 3 hole triangular flange)

Thanks

[tucker87]

Not sure of the sizes but if you check on lings Honda you will be able to get them from there.

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[15repyt]

Any nut and bolt will do once you've knocked the old ones out of the cat.

[JackEP3Premier]

They are M10 Bolts.