SUPER MANIFOLD with CATALYZER R-SPEC is more advanced and upgraded product of SUPER MANIFOLD with CATALYZER GT-SPEC. By removal of the catalyzer at the exhaust manifold, we could have a...
SUPER MANIFOLD with CATALYZER R-SPEC is more advanced and upgraded product of SUPER MANIFOLD with CATALYZER GT-SPEC. By removal of the catalyzer at the exhaust manifold, we could have a substantial reduction of the exhaust pressure. We also redesigned layout of front pipe with HKS metal catalyzer (this product comes with front pipe that passed Japan exhaust regulation). * Only used with stock muffler will be compliant for Japanese safety standard.
