1999 cummins exhaust tips
#1
#3
shouldn't even have a cat on it unless it was a california truck...
no need for back pressure on a turbocharged diesel engine. excessive drive pressure can actually cause a head gasket failure.
as for sound...straight pipe.
performance: any 4" or 5" kit will do the same thing... 5" just has a deeper tone and doesn't clear the spare tire very well...
no need for back pressure on a turbocharged diesel engine. excessive drive pressure can actually cause a head gasket failure.
as for sound...straight pipe.
performance: any 4" or 5" kit will do the same thing... 5" just has a deeper tone and doesn't clear the spare tire very well...
#5
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