Our d series tubular manifold replaces the restrictive standard cast iron manifold and improves exhaust gas flow thanks to its stainless steel, cad-designed construction. You will also benefit improved throttle response and increased power output.Features: constructed from t304 stainless steel 4-2-1 design offers greater mid range gains than a 4-1 design 2 bore collector tig welded boss fitted to accept lambda o2 sensor improved throttle response and gas flow direct bolt-on on fitment to standard catalytic converter or aftermarket decat sports cat gaskets included
Brand: Japspeed
