2bular Exhaust Manifold with 200 Cell Sports Catalytic Converter
All Stainless 304/316 construction. 10mm thick Stainless head flange with laser-cut expansion slots and zero distortion after welding. Stepped primaries - not too long/not too short. Longer than this design will cost you power! A quality hand-built/TIG-welded merged collector (not pressed tin!). Combined with the 121mm diameter HJS HD Directional 200Cell catalyser.
Independently tested against other aftermarket offerings, the 2bular 4-1 gave the best power AND torque.
We suggest to use new exhaust manifold nuts available here.
If your studs are damaged or corroded genuine Toyota are here.