Application: 1985-95 Porsche® 928
For those that live in locations that require catalytic converters, we have located special high-flow-rate all-metal cats. We have them sized just right to mount into our X-Pipe, so no modification of your stock 928 exhaust is needed. These cats are built with a smooth spun-metal housing and precious-metal (platinum and palladium) core. Cats like this cost a little more than ceramic-core cats, but do a much better job of reducing noxious emissions (so you pass inspection!) without as much restriction as we see in ceramic models. Tests have shown our cats flow exceptionally well and only reduce your output by 6-8 HP (compared to having no cats at all). Ceramic Cats that we tested reduced the HP by as much as 15 HP!
The price is for a PAIR of these catalytic converters.
We also have a catalytic converter for the single exhaust customer, 1978-1986 fitted with the Borla-style single exhaust with 4-bolt flange. This cat fits our Header-Y pipe nicely.