Well I'd say they're good as they allow air into the engine...
Alright enough of being a smartazz
I personally don't think an aftermarket t/b is worth the price on a stock/bolt ons v6.
I'm sure you'll see some gains after a tune, but not enough to justify the $259+.
Save the cash and buy some gears/tlok
12 Black GT500 SVT PP l 2.6 Pulley/Idler l Airaid l o/r X l 305 NT555R's l Recaros l
04 Azure Blue Mach 1 / 03 Sonic Blue 3.8 / 14 Sterling Grey F150 FX4 402A 5.0 / 11 GT500 R.I.P.