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Updated: Had my old exhaust replaced with 50mm stainless steel with one small Cowley box mid way and One Cowley straight through muffler .
Sound is awesome - like my previous impreza.Only catch is the fitment center did not have the tools to remove the front CAT and re-fit the O2 sensor-- I think I scared the hell oout of the service manager when I requested the additional wideband bung to be mounted between 10 and 30 degree max from vertical.
Today I went to see a well known performance specialist, whom builds and races vehicles and I saw some of his welding work - really precision stuff.Tomorrow I have my vehicle booked in and the necessary small 50mm bend has been acquired to replace the front cat . This should end my exhaust and next phase would be wiring up the wideband cables and gauge to monitor for a few days before venturing into next phase.
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