The guy definitely said 3" in and out. One of the commenters said he had the same exhaust...here's a video from his vault:
Sounds awesome to me. Here's what it sounds like from inside the cab:
I sent him a msg asking if he just replaced the muffler, left the cats, if he's done anything else to the motor, etc. I'm thinking he just did a muffler, put a tip on, and has a K&N CAI (look at his other vid). I wish more have bought this muffler, but from what I've heard I love it. I'm also very impressed w/ their apparent build quality. The Wicked Flow tech said he's not familiar w/ using his mufflers for our 4.0L, but he recommended this model:
For those that want to waste a few min's of their life, here is my email to the co. and their response:
"We Tacoma owners have a hard time making our V6 have a nice throaty and deep sound w/o having a drone, and w/o having it sound raspy and/or ricey. There's one video floating out there of a Tacoma with only a Wicked Flow muffler on it (no headers, resonators apparently still there, and only a CAI noted), and it sounds awesome. Do you have any recommendations as to which of your mufflers would sound best for the 4.0L v6? The guy in the video said it's a 3" inlet muffler, but our stock piping is 2.25" and no one I know goes over 2.5" for inlet/outlet sizes. I know this is all subjective, but I wanted to contact you in case you guys are familiar with our particular engine and which of your mufflers work best with it. Thanks!"
Lorin Millsap's response:
"I cannot say I am familiar with the engine in your trucks, but I am familiar with the situation you are talking about. The drone of most of these mufflers comes from the simple fact that they are not designed to be effective at absorbing sound. When I say they and these, I am reffering to the major brand names, Borla, Corsa, TRD, Magnaflow
, Flowmaster. These mufflers have little sound absorbing materials, or they have other design features to make the muffler louder, and this creates the drone.
The WickedFlows are different. They may seem like they are built the same way as the others (straight through perforated tube), but the similarities end there. They use much higher quality steel, where the metal itself cancels out some of the noise, and the packing material is designed to hold up under even the most stressful conditions. We do not use rockwool as a packing because its fine fibers break down over time. Basically, when our muffler was designed, we asked what was the harshest conditions these could encounter and will it hold up to that.
My personal vehicle is a 1994 Ford Aerostar 4.0L. Here you have a meaty sounding V6, in a van that has a larger interior that would tend to resonate. I know from experience that these vans have a terrible drone with Flowmaster 50 series and Magnaflow. I run our 18" WickedFlow with 2.25" pipe and it has no drone at all. It can still produce all the sound I need when I want it to, but at cruise the system goes quiet.
So while I cannot say with complete certainty how it will sound on your vehicle, my experience has been that these are among the quietest smoothest sounding mufflers.
The one I would recommend is the 18SC224. That sticks with your stock size, is capable of producing a descent amount of sound, but is not overly loud and should compliment the vehicle overall."