I finally did it. I bit the bullet and went out to get a "true dual" setup. Well, almost. the Muffler is shared, but it's a crossover Magnaflow 12599. 3" pipe and chromed stainless tips. I could have gone with dual mufflers, but the sound would have been more raspy and I didn't want to get an X or H pipe either.
All in all the performance gains are impressive. Better throttle response with more growl. Definitely more hp and the torque makes your neck snap. How much of both will be determined after the dyno pull.
Some crappy photos of a filthy truck (sorry, it's snowing out):
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05 FX4 Supercab.... 87 Octane Performance tune by VMP Tuning, Edge Tuner mounted in ashtray door with super stealth hideaway option :). Airforce One intake, Roush Off-Road SI/DO Exhaust, LED map, dome and license plate lights, Bak Flip folding bed cover, loose nut behind steering wheel.
About a grand if it's done right. Mine was done with extra hangers and cross supports, and as much of the stock exhaust was replaced as possible.
They spent over 6 hours on it, so over half the price was labor. Getting over the axle with 2 3" pipes is a challenge. It'll be much less if you dump the exhaust before the tire.
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