Exhausts 2017-07-31T15:59:33+00:00

In-House Exhaust Welding, While You Wait.

Brand New Exhaust In-Stock Ready for Fitting.

The exhaust on your car may from time to time need changing or welding to repair it, At our car repair garage located at Little Island we can do both.

At Quick Fit we keep a large stock of exhausts. We can fit a new exhaust section and leave the 2 remaining exhaust sections in our car repair garage.

We can also weld an exhaust system in our car repair garage if a replacemnt is’nt needed. We can weld any section of your exhaust in our car repair garage.

Welding is an afordable way to repair your exhaust without having to purcahse a new one. We can weld your exhaust as long as the rust has not totally decayed the metal in your exhaust system.

For a free no hassle quatation call to our car repair garage in little island for an inspection.

The exhaust normally has 3 sections

  1. Front Pipe, The catalyst is normaly fitted here.
  2. Middle Exhaust Box.
  3. Rear pipe with back Exhaust box.

Exhaust Systems

The main purpose of the exhaust system is to silence the noise from the engine.

Fitted in your exhaust system is a catalytic converter, which is very important for the reduction of emissions from the car.

Exhaust systems can sometimes be repaired and we have a welding plant in house to cater for this. Alternatively, parts can be replaced if required.

We would need to check the exhaust system to diagnose where the problem is occurring which would require you to call down to us and get a free check of system.

Please contact us to arrange an appointment or to book a car service.


Catalytic Converters

Oxygen Sensors are used in modern automobiles to control the fuel and ignition systems to optimize a car’s performance in the areas of emissions and fuel economy. Sensors are located before and after the catalytic converter to check on the amount of oxygen in the exhaust. The sensor sends signals to the car’s on-board computer, which then can adjust several variables, including air/fuel ratio and timing, in order to bring the engine into the optimum operating range

How the Diesel Engine Exhaust System Reduces Emissions

A diesel particulate filter, sometimes called a DPF, is a device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine. Wall-flow diesel particulate filters usually remove 85% or more of the soot, and can at times (heavily loaded condition) attain soot removal efficiencies of close to 100%. A diesel-powered vehicle equipped with a functioning filter will emit no visible smoke from its exhaust pipe.
In addition to collecting the particulate, a method must exist to clean the filter. Some filters are single-use (disposable), while others are designed to burn off the accumulated particulate, either through the use of a catalyst (passive), or through an active technology, such as a fuel burner which heats the filter to soot combustion temperatures, through engine modifications (the engine is set to run a certain specific way when the filter load reaches a pre-determined level, either to heat the exhaust gases, or to produce high amounts of NOx, which will oxidize the particulates at relatively low temperatures), or through other methods. This is known as “filter regeneration


Manifold or header

In most production engines, the manifold is an assembly designed to collect the exhaust gas from two or more cylinders into one pipe. Manifolds are often made of cast iron in stock production cars, and may have material-saving design features such as to use the least metal, to occupy the least space necessary, or have the lowest production cost. These design restrictions often result in a design that is cost effective but that does not do the most efficient job of venting the gases from the engine. Inefficiencies generally occur due to the nature of the combustion engine and its cylinders. Since cylinders fire at different times, exhaust leaves them at different times, and pressure waves from gas emerging from one cylinder might not be completely vacated through the exhaust system when another comes. This creates a back pressure and restriction in the engine’s exhaust system that can restrict the engine’s true performance possibilities.

A header is a manifold specifically designed for performance. During design, engineers create a manifold without regard to weight or cost but instead for optimal flow of the exhaust gases. This design results in a header that is more efficient at scavenging the exhaust from the cylinders. Headers are generally circular steel tubing with bends and folds calculated to make the paths from each cylinder’s exhaust port to the common outlet all equal length, and joined at narrow angles to encourage pressure waves to flow through the outlet, and not back towards other cylinders. In a set of tuned headers the pipe lengths are carefully calculated to enhance exhaust flow in a particular engine revolutions per minute range.

Headers are generally made by aftermarket automotive companies, but sometimes can be bought from the high-performance parts department at car dealerships. Generally, most car performance enthusiasts buy aftermarket headers made by companies solely focused on producing reliable, cost-effective well-designed headers specifically for their car. Headers can also be custom designed by a custom shop. Due to the advanced materials that some aftermarket headers are made of, this can be expensive. Luckily, an exhaust system can be custom built for any car, and generally is not specific to the car’s motor or design except for needing to properly connect solidly to the engine. This is usually accomplished by correct sizing in the design stage, and selecting a proper gasket type and size for the engine.