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Bhp or Beefy Sounds...
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By CTR247
#3862982
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

Long time ago I had and Ep3 for 220k kilometers in[…]