Hi guys as its getting colder, i want to run my cars in the garage without getting killed by exhaust gasses, i want to run some sort of pipe outside to take the fumes away, have any of you guys done this and what did you use ?

We put 4" o/d Aluminium extractor concertina pipe stuff on our diesel (very smoky) fork lift,and ran the pipe many metres into the carpark.whilst fork lift worked inside-100% sucess until the Ally hose caught fire!-plastic coated I think