Versions equipped with a catalytic converter produce and . They are used for collector, tubing, muffler, catalytic converter, tailpipe. An example is the requirement that every car be fit with a catalytic converter. It is a legal requirement to have a catalytic converter. It is credited with developing the first production catalytic converter. Power was increased to with a catalytic converter. Models with a catalytic converter produce and . This prevents thermal shock cracking from taking place when the catalytic converter is used. The wheels and tires, battery and catalytic converter are removed. In countries where a catalytic converter was not fitted, the engine generated . A stainless steel exhaust manifold incorporating a 3-way catalytic converter is used. Since MY 1988 it was available both with and without catalytic converter. However, Mazda eventually shifted to the catalytic converter system. During the 1970s, UOP worked on pioneering a combined muffler catalytic converter. In Europe, engines with catalytic converter emissions controls were made available for the first time.