PERFORMANCE CATS.

We now offer an improved range of both 100cpsi cats and 200 cpsi performance cats, which come standard with a stainless steel monolith. Having fewer cells per square inch improves the gas flow through the catalytic converter, and can boost performance by up to 15bhp. The stainless steel monolith gives extra longevity, especially on lowered vehicles.

Yorkshire Exhaust Specilaist's  can supply a wide range of universal catalysts with both metalic and ceramic monoliths that are suitable for both petrol and diesel engines.They are available in a variety of lengths and bore sizes.

All our unicats are manufactured neck-less but stubs of any bore can be welded in for a small additional cost at time of purchase.

Quality.
At the heart of every YES catalyst is world class substrate supporting the very latest wash coat technology. Each catalyst is protected by double density matting and seam welded into a stainless steel casing before being individually pressure tested to 30Kpa. These features enhance the performance and durability of our catalysts – essential for customer satisfaction.

CAT FACTS

Catalytic Converters have been a legality on all petrol cars since 1993. The “European Emission Control Legislation“ enforces the limits for toxic emissions. A cat is located close to the car's engine for heat purposes. All internal ceramic monoliths have E9 Type 103-R approval under current European legislation. The use of new fittings is recommended where available when fitting Cats. An Emissions report is required for all emissions failures, as this gives an indication how the car is running. Hydrocarbons are unburned fuel.

Ceramic Cats carry a 2-year warranty, Metallic Cats carry a 3-year warranty. When fitting a Cat alone, put it into place & loosely fix it to the vehicle, if you tighten up one end you may not get the Cat to line up correctly. A Cat isn't designed to get a vehicle through its MOT. A Cats purpose is to reduce the amount of harmful gases being released into the atmosphere! Don’t hit the catalytic converter with a mallet, hammer or chisel gun to try and force it into place. Silicone can be used as a sealant in front of the Cat, but never use exhaust paste. It is advisable to fit a Cat whilst the vehicle is on a ramp, rather than on axle stands.