Well I believe the video explains it all but anyways its Spintech cat-back with two pro street mufflers. The piping is 2.25 and there is an X-pipe. I have it dumped before the axle as well. It is way louder than the video shows but it does not drone bad at all. I know hooligan is running one pro street muffler and loves it as well. Anyways thought I would share.
YouTube - Titan with SPINTECHs true dual x pipe system

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07CC2wd Performance:2*advance, S&B intake w/ Ram Air mod, Dual Pro Street Spintech Cat-Back Dumped, Relentless Catch Can, JBA shorties, Magnflow cats, Uprev Exterior: NCD leveling, Tinted tails, Blacked headlights, HID's

The noise issue in the cab is what concerns me most about the exhaust upgrades folks do. I know when I did the same thing on my old Honda, it became painful to drive over 65mph for any length of time at all. Traveling any time at all and I ended up exhausted from the noise.

One of the selling points on my Titan was the quiet cab.

So, how is the noise level in the cab????

Red

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2005 Titan KC SE, Helwig, True-Track, ARE MX Canopy

From 60 to 65 it is kinda loud not as bad as my buddies old Tahoe with a flowmaster 40. But after 65 it gets quieter the faster you are traveling. I cruse at 70 to 75 normally and it is just fine. My girl just heard it the other day for the first time and she said thats not to bad. Its loud but doesnt hurt my head.lol If I had piped it out the back it would be a lot quiter in the cab though. Ron at spintech called me the other day and said he would like it if I caould come in when he has sometime so he can get pipes coming out the back all set up cause I guess there has been a good deal people asking about it. But I will say that these trucks sounds great with the stock exhaust as well

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07CC2wd Performance:2*advance, S&B intake w/ Ram Air mod, Dual Pro Street Spintech Cat-Back Dumped, Relentless Catch Can, JBA shorties, Magnflow cats, Uprev Exterior: NCD leveling, Tinted tails, Blacked headlights, HID's

Thanks for the clip. Hooli had mentioned junking the Banks and going back to the stock piping size with this muffler and I was curious about the sound so now I know.

Yea hooli was a great help in me making my decision.

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07CC2wd Performance:2*advance, S&B intake w/ Ram Air mod, Dual Pro Street Spintech Cat-Back Dumped, Relentless Catch Can, JBA shorties, Magnflow cats, Uprev Exterior: NCD leveling, Tinted tails, Blacked headlights, HID's