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Price: $499.99
Exoticspeed BMW N55 Front test pipe Cat deleted 135i/335i 2010-2012The test pipe is a direct upgrade replacement for your BMW N55 engine found on 135i and 335i , also work for X-drive as well.
the pipe dia primary 4\" with 2.5\" dual flanged pipe to your catback, the test pipe equipped o2 sensor bung ready for stock location sensor use.
Aero space grade Stainless material with Ti-blast finish surface (not paint or coated)
this is a great upgrade for your N55 engine and maximize the HP and torque.the test pipe give your car a race tone and great efficiency.
off road use , ecu re-flash recommended. gasket and bolt included (shows in the picture), come with 1 year warranty