Borla140773 Cat-Back Perf. Exhaust Sys. for '19-'23 Chevrolet Silverado 1500 V8 & GMC Sierra 1500 V8T-304 Stainless Steel S-Type Sound Dual Split Rear Exit Single 2.75" Exit Each Side Reuse O.E. Tips

Borla is the real deal! Heads turn every time I start my truck. The installation is not difficult for someone with a general knowledge of vehicles. Took 2-3 hours to remove factory exhaust and install this beauty! The sound is amazing and the shipping price through Amazon was significantly less than anywhere else. A++++++

Love this exhaust. Took a bit to hack off the exhaust on my 2019 Denali with less than 3,000 miles but so glad I did. Removing the stock exhaust was much harder than installing the Borla. One tip is to drop the spare tire to get to the connection between left and right exhaust tips. This help getting access to the stock connection right in front of the spare tire. Did I say love the sound! Had a valet tell me that it sounded like a Corvette. Ha! Much better sound than a Corvette.

Way to loud! It's far to loud to consider reasonable. Even with small amounts of throttle input it becomes ridiculously loud. Cold startup wakes the neighborhood. Towing is just ludicrous and excessively loud. Installation was straight forward and only one spot in the stock exhaust had to be cut to remove it. All parts align well with stock mounts and everything fits great. It's a MUCH louder than I was EXPECTING. And saying medium loudness on the Borla sight is far from accurate. I reached out to see what it would cost to swap to the touring muffler and they are quoting 70% of the price of the entire system. So I'd give them a 0 star for custom service.Towing and when DFM kicks on the sound is purely unacceptable for daily drivers. I'll likely not keep this long and look for something reasonable to install on my truck. If you want to be as ludicrous as the average Hardly Davidson this is your exhaust......

The media could not be loaded. I was seeing a lot of conflicting information about fitment on a 2023 GMC Sierra 1500 related to this system. Based on the Borla website, it fit, but according to Amazon it didn't. I decided to see for myself and can assure all the 2023 GMC Sierra 1500 owners out there that it does in fact physically bolt on as you would expect. Because I installed this with the truck on the ground, I had to make an additional cut in the factory exhaust to remove the right (passenger) tail pipe, so that cut plus the one in front of the muffler that the instructions indicate.The S-Type exhaust is very aggressive on cold starts and under hard acceleration. The cold start volume drops quickly as the truck idles down after about 30 seconds.Now for the gotcha ... DFM (Dynamic Fuel Management) is very noticeable to the ear with this system and I haven't found a disabler that works with the 2023 models yet. I will say that enabling the tow/haul mode minimized the feature in town to a point that I can live with it. I think on the highway, it won't really matter as the DFM won't be rapidly cycling on and off, so not that noticeable. I haven't tried the "L9" hack yet for in town, but will do so to see how it works vs. tow/haul mode.Update: The L9 trick works perfectly for preventing the DFM from activating.

The hardest part was removing old assembly. Had to make 2 cuts with Sawzall.

Easy to install and sounds fantastic. Very happy 2021 Sierra.

high quality. aggressive on start up but once calmed down great sounding exhaust there is a slight drone in lower RPM when the dfm kicks in but its hardly noticeable. the sound it produces is worth it.

Sounds great a little loud when you fire up truck when cool. Think I may wake up the neighbors some mornings