HOW TO MEASURE AND FIT A NEW FLEXIBLE PIPE

Publish Time: 2018-08-10 Origin: Site

Firstly it is important to measure the outside diameter of the exhaust pipe near to where the damaged flexi pipe is fitted, this can be done in a number of ways, the best method is to use a Vernier gauge, if you do not have a Vernier gauge then simply wrap a piece of string around the tube and measure the length on a ruler, you can use the guide below:

This is a guide only.eg your string measures 164mm then the chances are your tube size is 2 inch diameter tube.

Tube Diameter in MM	Inches	Circumference in MM
45	13/4	141
50.8	2	160
57	21/4	180
63	2.54	198
76	3	239

The second measurement you need to find is the overall distance of the Flexi pipe, see Image below:

Weld on Flexi pipes are available in the following lengths and you can cut the distance nearest to an available size.

Inlet / Outlet ID	Length	Inlet / Outlet ID	Length	Inlet / Outlet ID	Length	Inlet / Outlet ID	Length	Inlet / Outlet ID	Length
45mm x 100mm (1.75” x 4”)		50mm x100mm (2” x 4”)		57mm x 100mm (2.25” x 4”)		63mm x 100mm (2.5” x 4”)		76mm x 100mm (3” x 4”)
45mm x 150mm (1.75” x 6”)		50mm x 150mm (2” x 6”)		57mm x 150mm (2.25” x 6”)		63mm x 150mm (2.5” x 6”)		76mm x 150mm (3” x 6”)
45mm x 200mm (1.75” x 8”)		50mm x 200mm (2” x 8”)		57mm x 200mm (2.25” x 8”)		63mm x 200mm (2.5” x 8”)		76mm x 200mm (3” x 8”)
45mm x 250mm (1.75” x 10”)		50mm x 250mm (2” x 10”)		57mm x 250mm (2.25” x 10”)		63mm x 250mm (2.5” x 10”)		76mm x 250mm (3” x 10”)

If you are installing a clamp on flexi pipe then add 2 inches either side to allow for overlap and clamps.

Inlet / Outlet ID	Length	Inlet / Outlet ID	Length	Inlet / Outlet ID	Length	Inlet / Outlet ID	Length
45mm x 200mm (1.75” x 8”)		50mm x200mm (2” x 8”)		57mm x 200mm (2.25” x 8”)		63mm x 200mm (2.5” x 8”)
45mm x 250mm (1.75” x 10”)		50mm x 250mm (2” x 10”)		57mm x 250mm (2.25” x 10”)		63mm x 250mm (2.5” x 12”)
45mm x 300mm (1.75” x 12”)		50mm x 300mm (2” x 12”)		57mm x 300mm (2.25” x 12”)		63mm x 300mm (2.5” x 12”)
45mm x 350mm (1.75” x 14”)		50mm x 350mm (2” x 14”)		57mm x 350mm (2.25” x 14”)		63mm x 350mm (2.5” x 14”)

Our clamp on flexi pipes come with the correct size clamps and in retail packaging, the clamp on flexi pipe can be fitted by a any handyman, please read the warning below:

Warning: When working on, under, or around any vehicle you must exercise caution. Please allow the vehicle’s exhaust system to cool before attempting to remove, as exhaust system temperatures may cause severe burns. If working without a lift, always consult vehicle manual for correct lifting specifications. Always wear safety glasses and ensure a safe work area. Serious injury or death could occur if safety measures are not followed.

Best thing is to leave this to a mechanic who will happily do the work for you for a reasonable cost; we do recommend a professional install the flexible pipe for you.

All our flexible pipes are made of Stainless steel with aluminized ends and come with a 12 month manufactures warranty against workmanship and defects.

Trade discounts may be given on bulk orders. If you require further advice please call us on 01753 686878.

We do offer a complete supply and install flex repair service, all you need to do is bring the vehicle into us we can then measure it and fit the most appropriate flex pipe for you, unfortunately we are unable to make any quotations over the phone for the service as we need to identify the exact position where the flex pipe has broken from and where the pipe would need to be cut to enable enough space for welding, on some vehicles the complete downpipe may need to be removed to gain access, please call to make an appointment for a free quote.

HOW TO MEASURE AND FIT A NEW FLEXIBLE PIPE

Related Articles