Re: fastman TB, magnaflow muffler.. intake needed on 4.7?
Get It!! I have the K&N 63 on my 09 4.7. Helped with throttle response and just runs better. I don't know how much power it added but it sounds awesome. Running Superchips with 91perf tune w/trans app. Definitely worth the money.
09 laredo 4.7 28x w/ QD2 Superchip 91 Perf tune w/trans app, K&N CAI, jet 180 tstat, Bilstein 5100 struts and shocks, srt8 front & rear swaybars, Bwoody End Links, 255/65/17 General Grabber at2's, Sprint Booster. R1 premier slotted-Posi-quiet pads
2015 Granite Crystal Altitude.