Borla Touring Vs. GM Performance

Transient · September 30, 2020

Just noticed it a bit for the first time the other night on the highway. Didn’t really bother me that much. Was mild enough to forget about it after noticing. I think I had to turn down the radio to even figure out what it was. Haha

6.2 with the Touring here as well. Totally love the exhaust overall. Wouldn’t change a thing.

I drove across the country and had no issues with the exhaust sound at all. I didn't notice a drone sound.

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econometrics · September 30, 2020

My 5.3L GMPE does drone a little above 65mph on slight inclines... basically when it's running between 1600-1800 RPM, right before it would downshift.

It was a little alarming at first, but then I got used to it. It also alternated between a droning sound and the exhaust sound itself... but there are times when it is definitely a resonating drone noise.

All this to say, I'm not at ALL dissatisfied.

reardiff · October 1, 2020

Since it alternates between drone and exhaust sound, I wonder if the drone is when it's in V4? The Borla GMPE has a flapper to help with the helicopter noise when in V4 but wonder if it effects the drone too? Interestingly enough I just got a call from the dealer that my exhaust is finally here! Going to pick it up and put it on this weekend. Mines a 2017 but shouldn't be much different sound wise from the 2019/2020's. Will report back with thoughts.

Separately... This will be my second purchase of the performance exhaust. First go round I ordered off one of the big on-line parts company's and they send me the wrong one. (I ordered the right part# but what they sent me doesn't fit) But in my haste to get it put on I threw away the box before I realized it didn't fit, and now they will do absolutely for me about getting an exchange or refund so I'm out $1,000, and now another $1,000 on this new one. Expensive lesson.

I can't say 100% what it fits but appears to be for the 5.3 due to the 3 inch pipe and possibly for a 2019/2020 crew cab short bed. The hangers didn't line up right and was about 2 inches short to connect up at the front connection. But regardless I'd think the muffler could be used in most any application with a little welding. So it's sitting in my garage as an expensive paperweight. If anyone is interested I will let it go for any reasonable offer. I'm in Chicago area for local pick up or will be willing to deliver with in reasonable driving distance... Brand new and unused, but no box. I just can't definitively say what make/model it goes to other than it is for the 5.3. Accepting any offers at this point

lt1z · October 1, 2020

There is no flapper valve on the GMPE for 6.2. Its simply 3.5” back to the Y into 2.75” duals with one muffler

econometrics · October 1, 2020

1 hour ago, lt1z said:

There is no flapper valve on the GMPE for 6.2. Its simply 3.5” back to the Y into 2.75” duals with one muffler

There isn't one on the GMPE for the 5.3L, either.

reardiff · October 2, 2020

The Borla GM Performance Exhaust does. It's make by Borla to GM spec. which includes the flapper. Had one on my prior truck as well. I'll try to snap a few pictures, but it's before the muffler where the stock flapper is behind the muffler. But this is for pre 2019 models, so that could have changed with 2019/2020.

lt1z · October 2, 2020

The Borla GM Performance Exhaust does. It's make by Borla to GM spec. which includes the flapper. Had one on my prior truck as well. I'll try to snap a few pictures, but it's before the muffler where the stock flapper is behind the muffler. But this is for pre 2019 models, so that could have changed with 2019/2020.

T1 has no flapper for DFM engines

Red42 · October 2, 2020

Guess I am somewhat confused now. If the Borla touring and GMPE were sitting next to each other would there be any differences? Flapper or resonators?

econometrics · October 2, 2020

2 hours ago, Red42 said:

Guess I am somewhat confused now. If the Borla touring and GMPE were sitting next to each other would there be any differences? Flapper or resonators?

There are no flappers or resonators on the Borla Touring or the GMPE systems. For 6.2L or 5.3L for 2019+ T1 trucks.

It would be very hard to tell the difference if they were laid out next to one another.

Red42 · October 2, 2020

Great....I am getting to old to figure all this out. Think I will order the touring. Might wait to install until after I figure out the GM valve recall. My truck appears to fall in the date range. Built July 2020.

Transient · October 2, 2020

Great....I am getting to old to figure all this out. Think I will order the touring. Might wait to install until after I figure out the GM valve recall. My truck appears to fall in the date range. Built July 2020.

It's not a recall. They only issued a TSB. They won't do anything until something breaks. My truck was built in June 2020, so I'm in the same category. My truck was at the dealership last week getting offroad lights wired in. I asked them to take a look and showed them the TSB. They said nothing was wrong at the time of inspection, so they weren't going to touch it. They also looked for a leak in the rear window and found nothing.

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NolaHorn · October 7, 2020

I had the dealer install the GMPE and CAI. The GMPE came in a Borla box. See below:

NolaHorn · October 7, 2020

Pretty sure the GMPE and the Borla Touring are exactly the same. Regardless I love my GMPE. Growls to life on a cold start but isn't going to wake the neighbors. My daughter tells me she likes it when she hears me start the truck from inside the house and knows when I'm leaving for work in the mornings. It turns heads when starting it via remote start in a parking lot but doesn't look silly when a middle aged dad like me climbs behind the wheel. Let's me know it is there when I step on the gas but didn't bother me on a 7 hour drive down the interstate. I also love the look of the quad tips.

Transient · October 7, 2020

Pretty sure the GMPE and the Borla Touring are exactly the same. Regardless I love my GMPE. Growls to life on a cold start but isn't going to wake the neighbors. My daughter tells me she likes it when she hears me start the truck from inside the house and knows when I'm leaving for work in the mornings. It turns heads when starting it via remote start in a parking lot but doesn't look silly when a middle aged dad like me climbs behind the wheel. Let's me know it is there when I step on the gas but didn't bother me on a 7 hour drive down the interstate. I also love the look of the quad tips.

GMPE doesn't have quad tips. Quad tips are another accessory.

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NolaHorn · October 8, 2020

47 minutes ago, Transient said:

GMPE doesn't have quad tips. Quad tips are another accessory.

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Here’s the GM part number and link to what I ordered from the dealer. If you get it as an option from the factory it comes with the standard tips. For the 6.2 the only option of you install it after delivery is quad tips: