This flex-coupler is for your upgraded exhaust system when you do the 5vz swap, This coupler is 2.5” dia. ID, and 6” long. If features stainless-steel braiding, and requires welding to install. It is easy to install in a 2.5” exhaust system and is highly recommended when using the 3.4L Conversion Crossover Pipe, or exhaust headers. It is meant to be installed downstream of the exhaust collector, just before or after the catalytic converter.
