Re: Exhaust upgrade questions
I wouldn't worry about the do-not-tow recommendation. If you add on too many performance parts, you can change the peak HP and torque specs on the engine. As the 5.4 makes peak torque as early as 2500rpm, the added performance mods might alter that to 3500rpm (as example) which won't be noticeable as you drive as the extra HP and torque the mods will provide will offset the stock low range torque. For optimum performance if you plan to add other mods, do it soon and get a custom tune done to better calibrate the computer to work as efficiently as possible.
It'll pair just fine with Superchips. After you add the mods, be sure to disconnect the neg battery cable for half hour or so. This will allow the PCM to reset itself and 'learn' the new mods faster than if you decide not to reset. If I were you, I'd add a cold air intake to take full advantage of the exhaust. Taking in more air and having the ability to push it out just as fast will fair well in the mid to high rpms. Superchips also has a 'towing performance' setting, that alters some of the parameters to give you more low end torque. Enjoy!
'11 Ram Quad Cab 4x4 SXT 5.7L HEMI (stock); 48,500m
'06 Pontiac G6 GT 3.5L 220hp; 64,000m
'12 Chrysler 200 Limited 3.6L 283hp; 28,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!