Quote:
Originally Posted by andrewmp6
What turbo are you going to run?Unless its a diesel 5 inch exhaust is over kill.
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It would be in the 75-85mm compressor range, lsx engine. There is a guy over on performancetrucks.net that seen a 20 lb/min increase in airflow when dumping his 5" downpipe at the 4" bottleneck in his exhaust. That's a pretty substantial increase in my opinion. That is what got me thinking about the 5" exhaust and if it would even fit under the 73-87.