What's new

Quad Exhaust Tips

Sport0519 said:
Unfortunately, no. I haven't had a free night/weekend to get them put on yet. I will definitely report back on my experience installing them as soon as I get them on.
Click to expand...
Well.. I was able to get tips installed tonight. It took more time getting the HDMI port tips off than it did to cut the old pipes off and get the new ones fit! Speaking of fit... Gibson needs to flare the end of the pipe more! Both the exhaust pipe on the truck and the Gibson tips measured 2.5" OD. AKA - not a slip fit! Luckily I had an exhaust tubing expander or I would've been screwed! I was able to flare the end enough to get them on, but the tips are sitting just shy of 2" proud from the bumper. I would like them sitting no more than an inch proud. I gave up trying to get them pushed in further (for now). All that being said, I'll be sending an email to Gibson tomorrow morning.
 

Sport0519 said:
Well.. I was able to get tips installed tonight. It took more time getting the HDMI port tips off than it did to cut the old pipes off and get the new ones fit! Speaking of fit... Gibson needs to flare the end of the pipe more! Both the exhaust pipe on the truck and the Gibson tips measured 2.5" OD. AKA - not a slip fit! Luckily I had an exhaust tubing expander or I would've been screwed! I was able to flare the end enough to get them on, but the tips are sitting just shy of 2" proud from the bumper. I would like them sitting no more than an inch proud. I gave up trying to get them pushed in further (for now). All that being said, I'll be sending an email to Gibson tomorrow morning.
Click to expand...

1733351718998.gif
 

gemarsh said:
View attachment 25281
Click to expand...
Whoops. I did forget to attach pics. And yes - I know the drivers side is crooked. I got sick of getting dripped on by melting snow. I'm going to fix it tomorrow.

Edit - I was able to get the drivers side straightened out.
 

Attachments

  • PXL_20250213_011906664.webp
    PXL_20250213_011906664.webp
    276.5 KB · Views: 307
  • PXL_20250213_112554252.MP~2.webp
    PXL_20250213_112554252.MP~2.webp
    242.1 KB · Views: 302
  • PXL_20250213_112603489.MP~2.webp
    PXL_20250213_112603489.MP~2.webp
    152.4 KB · Views: 298
Last edited:
Sport0519 said:
Whoops. I did forget to attach pics. And yes - I know the drivers side is crooked. I got sick of getting dripped on by melting snow. I'm going to fix it tomorrow.
Click to expand...
Doesn't look horrible but I agree about 1" protruding is a better look.
 

Sport0519 said:
Whoops. I did forget to attach pics. And yes - I know the drivers side is crooked. I got sick of getting dripped on by melting snow. I'm going to fix it tomorrow.

Edit - I was able to get the drivers side straightened out.
Click to expand...

I just received my tips today and was under the truck looking at what I need to do tomorrow to install them.
You said yours sticks out 2" and you only want it to stick out 1", why can't you just cut another inch off the the stock exhaust? There should be plenty of room on the hangers to go back another inch.
And yes mine is 2.5" as well so I'll have to figure it out tomorrow to see how to get them to slip on.
IMG_0220.webp
 

hdrolling said:
I just received my tips today and was under the truck looking at what I need to do tomorrow to install them.
You said yours sticks out 2" and you only want it to stick out 1", why can't you just cut another inch off the the stock exhaust? There should be plenty of room on the hangers to go back another inch.
And yes mine is 2.5" as well so I'll have to figure it out tomorrow to see how to get them to slip on.
View attachment 25364
Click to expand...
Cutting an extra inch off the stock pipes would work, but I would prefer to get as much engagement with the stock pipes as possible. Currently they are barely interlocked with the Gibson pipes past the relief cuts. I would like them to interlock more rather than just cutting more off the stock exhaust pipe. Let me know how it works out for you. I have a theory that GM may have changed the diameter of the exhaust pipes when they went to the active exhaust on the '24+ trucks. What year is your truck?
 

Sport0519 said:
Cutting an extra inch off the stock pipes would work, but I would prefer to get as much engagement with the stock pipes as possible. Currently they are barely interlocked with the Gibson pipes past the relief cuts. I would like them to interlock more rather than just cutting more off the stock exhaust pipe. Let me know how it works out for you. I have a theory that GM may have changed the diameter of the exhaust pipes when they went to the active exhaust on the '24+ trucks. What year is your truck?
Click to expand...
2025 with the active exhaust, if mine is too far off I'll take it to get welded on. I don't plan on them ever getting removed so once I get the angle correct its probably best to have them at least tack welded anyways.
 

hdrolling said:
2025 with the active exhaust, if mine is too far off I'll take it to get welded on. I don't plan on them ever getting removed so once I get the angle correct its probably best to have them at least tack welded anyways.
Click to expand...
Welding them on wouldn't be a bad idea. I do have a welder....
 

Had a friend that had an expander but it it wouldn't go deep enough so I just cut another inch off and used 2 1/2" band clamps. Still need to adjust the passenger side but after I get them right I'll take and get them welded on. The nice thing was I was bale to fit my hand back and put LED license plate lights in while I was at it.

IMG_0226.webp
 

hdrolling said:
Had a friend that had an expander but it it wouldn't go deep enough so I just cut another inch off and used 2 1/2" band clamps. Still need to adjust the passenger side but after I get them right I'll take and get them welded on. The nice thing was I was bale to fit my hand back and put LED license plate lights in while I was at it.

View attachment 25375
Click to expand...
Did you contact Gibson and let them know you had to modify the tips to install as well? Hopefully they'll look into this issue if a number of reports roll in and they'll increase the flare diameter of the pipe. It's the only way they're going to do anything about it.
 

You must log in or register to reply here.
AT4 Forum Favs 👍 View All

GMC AT4 Forum Photos

View All
Sponsored Vendors View all →
Mangoal ZZ2
✉️ Contact us to become a Sponsor!

New Posts

Most reactions

Back
Top