4 inch (101.6mm) Ford FG Falcon Sedan Turbo Cat back stainless steel 304 pipework polished V-band clamps included for easier fitment and install.
4" is the largest possible exhaust to fit into this space, not all Fords are manufactured exactly the same, some cars can require extra work.
*It is recommended to have this kit installed professionally and/or on a car hoist as the rear diff cradle will need to be temporarily lowered when fitting.