Some manufacturers (like Sebring) deliver height adjustable mufflers to prevent cutting the rear bumper for fitting the endpipes. I don't know about Eisenmann, but it can be taken into consideration by those who do not want to cut the bumper.

greetingz,

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1990 300SL-24
1993 C250D with a minor 600+k kilometer
www.MBenzNL.com(the Netherlands)