Join Date: Feb 2009
Location: Northern Harford County Maryland
iTrader: 1 reviews
3 valve cars are respectable and respond very well to bolt-ons, etc. You can make big power and you just need to read some more on the subject. Granted, a coyote 4 valve will on average make about 100 hp more, but that's just progress.
On your original question regarding '06 3 valves, there's nothing to worry about other than the 2 piece spark plugs which just require pulling them every now and then to clean and never seize them to keep them from seizing and breaking off upon removal. Every 30-50k miles would be good to be worry free.
JDM 302 Stroker, Whipple 10 rib 12 psi, L&M, JBA, J&M, LFP, Corsa, Stage II cams, Manley, MGW, McLeod RST, Eaton Posi, 3.73's, Metco, Steeda, Autometer, CDC, Street Scene, SOS, Tuned at JPC Racing by Kevin MacDonald....Other Mustang 2015 GT Premium