Corsa Performance Exhaust Systems is offering up new cat-back pipes for full-size GM SUVs equipped with the naturally aspirated 5.3L V8 L84 gasoline engine. The aftermarket performance company is highlighting the new exhaust upgrade in a brief one-minute feature video.
The new Corsa exhaust system fits the latest next-generation full-size GM SUVs equipped with the naturally aspirated 5.3L V8 L84, including 2021+ Chevy Tahoe, Chevy Suburban, GMC Yukon, and GMC Yukon XL.
To note, the 5.3L V8 L84 is rated at 355 horsepower at 5,600 rpm and 383 pound-feet of torque right out of the box, connecting to the GM 10-speed automatic transmission when cradled by the latest full-size GM SUVs.
According to Corsa, the new cat-back exhaust system eliminates the stock flow-operated valves to unlock additional power and torque, with a claimed 20 percent increase for both output metrics, as well as improved fuel economy.
In addition, the new exhaust provides a louder, more-aggressive exhaust note, as demonstrated in the feature video below. During the video, we hear the new exhaust on startup and idle, as well as under hard acceleration.
Corsa also says that the cat-back system incorporates its “No Drone Exhaust Technology” to prevent any annoying reverberations through the cabin while cruising. The system is made from 304 stainless steel construction, and a straight-through muffler design with 3-inch piping. A variety of exhaust tips and exit configurations are available for an extra splash of customization for those who want it. The model in this particular video (Chevy Tahoe Z71) features dual tips that exit to the side behind the passenger-side rear tire.
As GM Authority covered last month, Corsa also offers a cat-back exhaust system for next-gen GM SUVs equipped with the naturally aspirated 6.2L V8 L87 gasoline engine, including the GMC Yukon Denali, Cadillac Escalade, and Chevy Tahoe/Suburban High Country.
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Comments
BS! Maybe theoretical 20% higher flowing lol. Load of crap if they actually claim HP and torque increase 20%. Especially without a tune, which these ECUs can’t be.
As a regular rider in Suburbans, imo they’re already too burbly and whiny for a bus. Intrudes on calls and any conversation between rows. How about the whisper quiet exhaust…sign me up for that!
I’d like comments from anyone who has added long-tube headers and/or cat back exhaust on LS engines with AFM or DFM. Does it ever sound odd?
How about making this for the next generation Silverado.
I just added the GM “performance exhaust” they sell on their accessories website since they offered a discount, free shipping to the dealer and, most importantly, I found out it is made by BORLA ! I was anticipating “some” improvement for the $$ I spent but was totally blown away with the immediate “awakening” of the 2020 Yukon’s 5.3 as soon as I left the Muffler shop’s parking lot. I cannot, of course, speak for a CORSA system but this BORLA cat-back system’s difference is just amazing in engine response, noticeable torque improvements and a very pleasant sound improvement but only when under acceleration…the rest of the time when applying a steady throttle, you don’t know anything has changed. We live in a very hilly area and I have noticed that when climbing our area’s usual hills, the tranny doesn’t downshift as often or at a much later point on the climb than before the cat-back system was installed. My next goal was to add Doug Thorley headers but they have not announced when they will make them available due to production delays of some kind. Want to wake-up your 5.3 LS ? Go for it !
Thanks for the information. Borla offers Touring, S-Type and ATAK cat back systems. Which did you use?
Cannot say for sure. Like I posted, it was purchased through the official GM Accessories site on-line so whichever one they buy from BORLA. If I had to guess, I would say it’s probably the Touring exhaust since the sound produced fits BORLA’s description for their Touring exhaust on their site. Still amazed at the immediate, huge difference that was made.
Thanks – that makes sense. I’d like the HP/Torque gain but most of us are motivated by the sound. I’d like it best if all of the sound went out the back and the cabin was quiet without drone while driving. If that’s the case then I’d probably go for the S Type. They say the ATAK has no cabin drone also but it’s likely too loud for my use.
If U want me to hear exhaust, kill the background porno music