02-12-2010, 09:03 PM #1
When do you actually need an RRFPR? If you have a different wheel in your supercharger and an aftermarket intercooler do you need one? Can you still use the stock injectors? I am confused.
02-12-2010, 09:41 PM #2
you got it right..when you use an external IC. It reduces restriction, increases airflow and cfm, air density, and more power.
02-12-2010, 10:15 PM #3
- Join Date
- Aug 2009
- Discovery Bay, CA
depends a bunch i would say. i have an 08 px with real basic stuff (fizzle intake, rad4, rear exhaust) and i need one especially in the cold air
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