Jarred Hewitt

Ok so to update my story. I ended up buying the GM factory performance exhaust. (Same thing as the Borla touring but Borla will not sell you a side exit touring. I have no idea why this is their policy). It sounds amazing. I will need to figure out how to upload the before and after videos here but with the headers and catless, the Borla tames the sound down when you aren't getting into the power. Highway driving is almost at stock level noises. Around town you hear the rumbling, no drone at any speed or gear. If you are going to go headers and catless but still need to pull into an office parking lot, I would recommend this setup. The truck was tuned with these modifications as well so it's really come alive.

Thanks for the input here. I looked up these mufflers and they are for 3", I'm running all 3.5" due to the 6.2. I ordered the factory GM Performance Borla exhaust which is basically a side exit touring. I'm hoping that calms it down a bit. If not I will look to add an upstream resonator or muffler.

Thanks for the input so far. Looks like both of you are pointing to adding a muffler/resonator upstream of the current MBRP muffler. CamGTP, at this point I can take off the MBRP, sell it and move on to another exhaust, if I modify it I lose that opportunity. My modification budget has plenty of room to buy another exhaust system, especially if I can make back some of the money on the first one. Just want a different sound. I do still have the stock resonator, do you think that would work as you suggested? Or is there a resonator brand/type you had in mind?

Hi folks, I know exhaust recommendations have been beaten to death here but I have a bit of a more specific ask and I'm wondering if anyone has run across the same thing. I've got a Sierra with the 6.2L running kooks 1 3/4 long tubes and the catless y-pipe. It's been custom tuned so no AFM. I also installed the MBRP 3.5" XP series "catback" hoping to hit a sweet spot between stock and a bit of rumble. My problem is the MBRP is a bit louder than I was expecting and to not make a scene at the office, I need something quieter. My next thought is to go to the GM performance exhaust (basically a Borla Touring) but i can't find any info on how loud that system would be or if anyone out there has run this kind of combination. The idea is to have more of a sleeper setup and the power (and noise) is only there when i drop the hammer. Any insight or recommendations?