So how much exhaust wrap or header wrap do you need? Use the caluculator below to estimate how much heat wrap you will need for your headers, downpipe, or exhaust system. Calculations below are based upon a 1/4" overlap which is recommended when installing header and exhaust wrap for automotive systems.

All fractions should be in decimal form:
⅛ should be 0.125
¼ should be 0.250
½ should be 0.500
¾ should be 0.750
⅞ should be 0.875

To use a motorcycle exhaust wrap calculator click here.