a month ago my muffler broke off at the pipe between the first and second muffler on my 84 300d. only the first inline muffler remains. i havnt replaced the second muffler because there is no noticeable performance diffrence and it is just a little louder. is this a safety hazard as far as breathing in fumes from under the car? also i hae one of those k@n air filter setups which goes directly into the turbo. instead of rerouting the breather tube on top of the cylinder head i am just running a heater hose from the head down underneath the engine. i know this seems irresponsible but i was told that what is coming out is just a miniscule amount of oily vapor. is this also a health/environmental hazard i should worry about?