Pardon me Guys,I have a M104 engine,it has a crossover tube also.I noticed my tube got hot from the rocker arm cover.So I insulated it from heat,with a new cold air setup and insulated exhaust also,crossover stays cool.If I had a diesel I would add that too,if it had a crossover.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran, deutschland deutschland uber alles uber alles in der welt