3.5" borla yet?

[TechSupport]

Be careful with the Borla and droning if that is a concern.
It has been discussed in here several times.
Corsa is still the way to go imo, if willing to spend the money.

15k miles on my Borla S type and no drone.

 

[humer101]

15k miles on my Borla S type and no drone.

Agree

18,000 k miles on my 15 Yukon XL Denali
545.7 miles on my 18 Yukon XL Denali

Absolutely no drone, on my S type Borla

Sent from my Pixel 2 XL using Tapatalk

 

[L's Truck]

I had put on a borla xr1 3.5 muffler. Drones like hell but sounded oh so good

 

[cardude2000]

15k miles on my Borla S type and no drone.

Yep. Same here

 

[vinnyray]

FYI - My friend has a 15 Tahoe and got a huge deal on GM performance (borla) exhaust on ebay, it was listed for Tahoe but it turned out to be the exhaust for a Denali XL. The pipe section with the flapper was longer and bigger than the tahoe 3". It was a 3.5 to match up with the flex pipe to the muffler, but then a dual 2.25 out of the muffler. The Denali performance exhaust is different part number.