Bigger throttle
Have a look here: Tom Morana Racing Engines
The 3.0l Vulcan engine is not a great engine to build "up", if more power is your goal then sell the 3.0l Ranger and get a 2004 to 2011 4.0l Ranger, 207HP
Or look at swapping in a 5.0l OHV V8 engine
Better results for less cost in most cases
No car makers restrict air flow or exhaust flow, they sell vehicles based on performance, so why would they
Emissions has nothing to do the air flow in or out(exhaust), emissions is about the efficient burning of gasoline to minimize pollution
The 3.0l Vulcan engine is not a great engine to build "up", if more power is your goal then sell the 3.0l Ranger and get a 2004 to 2011 4.0l Ranger, 207HP
Or look at swapping in a 5.0l OHV V8 engine
Better results for less cost in most cases
No car makers restrict air flow or exhaust flow, they sell vehicles based on performance, so why would they
Emissions has nothing to do the air flow in or out(exhaust), emissions is about the efficient burning of gasoline to minimize pollution
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