Parts Shop MAX complete oval exhaust system debut! This is an un muffled catless straight race pipe for S13 with KA-Turbo or SR engine with bottom mount T25 or T28 in the stock position. -Not compatible with Tomei Expreme manifold on SR20. Is compatible with Tomei Cast manifold on KA24DE. After a huge investment to establish our original tooling dies, we have developed the proprietary MAX oval pipe to create stainless race exhaust systems with unparallelled ground clearance and reliability. The new slip joints eliminate the need for constantly replacing gaskets, solid mountung eliminates the need for hangers, and the super flat oval shape tucks a half inch above the frame rails! For those of you who have seen stainless oval tube available elsewhere, you know its prohibitively expensive. Our aim is to make a resonably priced, easily accessable system. Our new oval pipe has more internal area than a 3" round but is only 2" tall. As you can see its quite a bit more ground clearance compaired to round. We solid mount the pipe to bolt locations under the car to minimize swinging and unneeded stress on the turbo manifold. The engines vibrations are isolated with a vertical flex section just under the turbo and well off the ground. The manufacturing process features 100% stainless material with brushed finish, mandrel formed thick wall oval tube, TIG welding & laser cut mounting brackets. Other unique features on this high quality bolt on exhaust solution include: half inch thick t25 and t28 5 bolt turbo flange, flange and independant tube seperation of turbine and waste gate flow, 3" to oval smooth transition, unique triple wall flex section, Dual o2 bungs for wideband (with one plug) and pie cut bends. ** Not legal for use on emissions controlled vehicles.