Good news: I noticed the truck runs a LOT smoother and definitely has more power, no doubt. The butt dyno is satisfied. I removed the intake baffle from the fender well, replaced the filter with an aFe Pro Dry S, tore out the charcoal filter, replaced the muffler, and then reset the ECU so the truck would adapt. For less than $100, I'm happy.
Bad news: Holy freaking crap this thing is loud now! What Magnaflow muffler did y'all use on your 4-bangers, or did you just buy the Magnaflow cat-back? I'm running the 10425 because the dimensions were absolutely perfect and I thought it should be relatively quiet with an 18" case length and 4" case diameter. WRONG.
Ok news: Its loud, but at least it's not farty loud or raspy sounding. It's deep and burbley, like a Subaru or something. Not exactly what I wanted, but thank GOD it doesn't sound like a barrio Honda with a PepBoys fart can. The other good thing is the natural "dead spot" in the exhaust tone is right at cruising speed (45 in 4th and 70 in 5th) so I'm not going to go stark-freaking-mad driving to work in it.
What I did: The install was a cinch. My measurements were perfect and it welded right in after cutting out the stock muffler. I did eliminate an unnecessary bend by cutting the factory pipe back 18" and filling the void with an $8 aluminized straight pipe from AutoZone. Had I thought about that before hand, I would have ordered a longer muffler. Side-by-side, the stock muffler appears to be about 60-70% larger than the Magnaflow even though the case lengths are only 3.5" apart. The intake mods have been discussed all over this site so I don't need to go into any detail. The hardest part of that was removing the splash guard/fenderwell liner without busting all the retarded square clips they used. All told, the intake and exhaust mods took me about two and a half hours and cost $83.
This is the first 4-cylinder I've ever owned, so I didn't know what to expect coming in (especially because I'm down four cylinders and 3.2L from my last truck) and needless to say it has been a learning experience.
Yes, I will get videos, but I have to wait until the better half gets home to record it.