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  1. While I was admiring the underside of my bran new 19 Silverado I noticed the exhaust pipe, immediately after the cat, is squished, like super flat... Has anyone replaced that section with a normal round piece of tubing? Did it make any improvements in sound/mpg? Seems like it must!
  2. Hello Everyone! Before I get started I want to thank anyone in advanced who responds with pertinent information. I'm looking for a replacement exhaust system for my 09 Silverado 6.2L 4x4 Crew Cab/Short Bed. My current system has lots of rust (living in MD, they heavily salt & brine the roads here) and has sprung an exhaust leak right behind the muffler on one of the pipes. I've been searching around (thought it would be easy to find a system) but have not had luck in finding what I have been searching for. There are plenty of systems for 5.3L & 6.0L motors but scant any for
  3. Alright, before you say you don’t hear anything let me explain first. This video posted below is my 2021 Trail Boss 3500k miles and has the most annoying exhaust sound. I know there’s some serious pro’s on here who could tell me what’s going on. Essentially any time I start it up high RPM, accelerate, or decrease RPM’s I’m greeted with this annoying metallic rattling noise coming from exhaust. Took it to dealer who claims it’s normal (per-usual) and says it’s the liters I can hear in the exhaust tone. They checked exhaust donuts and heat shields and found no issue.
  4. When I bought my truck in September, I couldn't believe how quiet the exhaust was on a 420hp motor. But I have to remind myself I'm not the target market because the majority of truck buyers these days want quiet and luxury. My first attempt was the muffler delete. I was looking for an affordable option since I was also looking at a potential real estate investment at the time. Honestly, it turned out really good. It was much louder on startup and in town but surprisingly quiet on the highway since I left both flappers in. The best part is it only cost $75. The downside was a slig
  5. Welcome to my build! Started with a 2019 Silverado 1500 LTZ 4wd 5.3L, which I bought with 9k miles on her in August of 2020. Got a crazy good deal on it, justified me driving to Georgia from Houston to pick it up. It even came with the Ranch Hand front bumper on it already, other than that she was stock. Little bit of background on my past trucks, I've been fortunate to own quite a few: 07 JK Wrangler, 08 Silverado 1500 LT Z71, 2014 GMC Sierra 1500 SLT Z71, 2015 GMC Sierra 1500 SLT w/ 6.2L, 2016 Denali 2500 Duramax, 2017 Silverado 1500 LTZ Z71, and finally my 2019 Sil
  6. Hello, Everyone Just Wanted to share a video I was meaning to make for some months now, I lost a GoPro Camera on the process, so I had to save for a new one to make this video. If you like the video, a subscription to my YouTube Channel is always appreciated! This is my exhaust set up -Speed Engineering Long Tube Headers (1 7/8" Primaries to 3" Collectors) -Dual 3" X Pipes -Dual 3" Magnaflow Mufflers (PN 14419) - True Dual Exhaust to 3.5" Tips This is how she sounds while towing:
  7. We have a 2016 Yukon 6.2L which developed a rattle at approximately 60k miles. Initially I believed the source of the rattle was a heat shield, but everything seems to be tight. It has been to the dealer twice and no progress has been made to resolve the issue. The first time they dismissed the problem and called it "normal" and the second time they believe it's a broken baffle weld in the muffler. What do you think? Thanks in advance Video with several angles from under the vehicle demonstrating the issue. The problem only surfaces when the vehicle inters v4 mode. Also, the rattle
  8. I can’t narrow my search results for this, anyone know if there’s a difference between the single vs dual exit exhaust on the 2019 LT+ trims? I have the single side exhaust with the stock bumper without dual cutouts, I found a good deal on RC dual exhaust kit and thinking I could mod the tips with down tips. thanks for the assist.
  9. I have a 2014 GMC 1500 with a 5.3L. I recently replaced my CATs because I was getting the dreaded P0430 code. SO I put new Magnaflow exhaust systems as well as brand new sensors in it. I got it all in and about a day after I got it all installed I got the same code P04030. I double checked the seals and sensors and looked at the live data and it all looks on the level...the only other thing I can think is that there is a wiring issue with it...the connector on bank 2 sensor 2 looks in order so I'm a little confused as to why I'm still getting this code other than there is a ground or an electr
  10. I was hoping after SEMA we would start getting some sneak peaks into what was coming for the 3.0, but no luck thus far. Anyone else heard anything? Nothing much from what I have tried to research.
  11. Hey all, Comparing exhaust and I am having a hard time figuring out what I want. I have a LT Trail Boss. Reply with what you got, opinions, interior drone if there is any, and a video is possible. Thanks.
  12. Hi all, new to the forum, but have been reading random threads. I own a 2020 Trailboss, and my wife has a 2019 Suburban Premiere 6.2. I did some searching and couldn't really pinpoint any good discussions on this. I'm looking to add exhaust to the Suburban. I was hoping to accomplish 2 things: 1. Marginal increase in volume/sound, she wants people to know she's on the road 2. "Dual" exhaust, however I can't seem to find any good pictures or systems that exist out there. Honestly I don't even want/need the tips visible, it would be great to add a 2nd exit on
  13. I would like to know if my 2’7/8 o.d intermediate pipe after my long tubes going into flowmaster si/doFlowmaster exhaust is too small for my 6.0 cammed with 10.5 to 1 comp is restricting my motor. The factory 6.0 exhaust on HD’s is much bigger. Any thoughts?
  14. I've been researching exhaust options until I'm blue in the face and I don't think I'm any closer to a decision. I had the GMPP system on my K2 but I can't believe the markup on the T1 system if you go through the GM Accessary website or dealer. I've seen a code flying around for 20% off and I have around $200 worth of GM points after recently purchasing my T1. That would bring it down to around $1200 which is a far cry from around $1750 where it MSRPs. I know, I know, you get what you pay for. But when muffler-only options are so much cheaper, I'm torn. In my research through the Forum I see
  15. Hey guys n gals...new to the site. This is my second GM truck but doing a VASTLY different build on her. My first truck is an 05 Colorado Xtreme drift truck, while this one is a 2018 Sierra 1500 Z71 Prerunner build that's my daily (it's the 5.3, not the 6.2) My question is...which exhaust is better for pure, clean loud while maintaining a low, angry tone when I get on it? I know Magnaflow is a straight through so no "restriction" while Flowmaster is baffled for tuned tone. I loathe exhaust "pop n bang" like glasspacks and whatnot...so im trying to avoid sounding like every cheap, c
  16. Looking for a new exhaust for my 6.2 AT4. Leaning toward the Borla Atak system. Appears to deliver some sound and performance gains. Talked with Borla Engineers and they say absolutely NO drone on the Atak system ay any RPM and no problem with cylinder deactivation. I just don't want it to be too loud at cruising speed but have not heard of any complaints. Ready to pull the trigger on this but looking for any first hand experience with the Atak system. Thanks
  17. Looking for Back Grill, AT4 Badging and black dual exhaust tips. I have been jonesing for them since I picked up my white AT4 3 weeks ago and then recently saw pics of all of them on a grey AT4 from a dealer site in Florida. It l poked really good and confirmed my need. I am thinking the grille may be from an Elevation model. I saw some black AT4 badging on EBAY but unsure about quality. Any help would be greatly appreciated.
  18. I'm looking at the Flowmaster Outlaw Dual Exhaust System. I do like aggressive exhaust but my main consern about the outlaw is it too loud to have a conversation in the truck with windows up? If it's too loud how would the Flowmaster FlowFX Dual Exhaust System with Black Tips; Middle Side Exit suffice?
  19. Well, paid $80 to get the muffler and flapper cut off on my 19 with the 5.3l.. The drone is pretty bad and it sounds a bit too airy. At idle it sounds great, same with hard acceleration. On my 14 with the 6.2L, this mod sounded great. Should I have kept the flapper? I thought I read plenty of people who said save money do a muffler delete. What can I do to help this out?
  20. I have a 2012 GMC Sierra 1500 with 2.75" exhaust pipe. I am wanting to delete my muffler and add a glasspack without welding. Problem is, I can't find any adapters to fit anything. Do I go with a 3" or a 2.5" glasspack? And whichever one I go with, what size adapters/reducers do I use? The muffler shops in this area charge around $350 for this work, so that's the reason for doing it myself. I appreciate any help given!!
  21. Hello everyone, I currently have the GM Borla Performance Exhaust on my 2018 6.2L and I want more sound. The guys at muffler shops recommended I replace the muffler with this one: https://www.holley.com/products/exhaust/mufflers/street_chambered_mufflers/40_series_original/parts/430402 Part number:430402. I am aware that my current system has a flapper which eliminates drone but would that carry over to this louder muffler?
  22. Replaced my stock exhaust ('19 Sierra, 4WD, Extended Cab) with a Borla. What the hell do I do with the stock exhaust? Can't envision a need for it anywhere. Just hold on to it or is there a market for stock gear? Just looking for suggestions so it doesn't sit in my garage!
  23. Trading in truck and looking to sell the exhaust I had on it for about a year. It’s in great shape. Asking $650 with shipping costs paid by me. Part number is 140550BC on borla’s website. Pm or reply if interested. Located in Orlando, Fl if anyone wants to local pickup and avoid dealing with shipping. IMG_3932.mov
  24. So I'm getting a leveling kit installed on my truck soon and thinking about running 33x12.55R20. Anyone running 33's and how does your shift points feel? Also is anyone making an exhaust for the 3.0 duramax or a tuner? Any information will help.
  25. Cutout system installed on my Trail Boss
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