Just received these Borla mufflers, they should work fairly well for most F and 2F engine equiped cruisers. They are a close match for the late model factory mufflers - 6.25" diameter x 21" length case, 30" overall. Pipes are offset. These are VERY HD, Borla produces them for UPS trucks. 6 w/ 2.5" inlet 2" outlet, 2 w/ 2.25" inlet 2" outlet. A couple have dings or small dents, otherwise excellent and unsused, NIB. $50 each plus shipping.