Installed Borla/GM cat-back Exhaust System

mafd2 · February 2, 2016

I have a like new set of Gibson slash cut rolled edge polished stainless tips that are bolt on/clampless. 2.25 inlet 4" outlet which fit the Borla system perfect. I'll let them go for reasonable and much cheaper than the Borla tips. If anyone is interested let me know.

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brents · February 3, 2016

You can get the factory exhaust off without cutting and without a lift. At least on a crew cab short box. I did mine by myself and it was pretty easy - just jack up the backend as far back on the frame as you can. Just need to get it high enough so the axle hangs as far as possible - from there you just need to twist to get it out. Start by pushing it back to clear the crossmember then it comes out towards the front of the truck.

brents · February 3, 2016

Forgot to mention that you should lower the spare as well to get it out of the way. Doesn't need to come off, just lowered and swung to the side.

boker · July 16, 2016

will the borla cat back have any effect on the noise change v4/v8 louder,same?

cbrsilv15 · July 16, 2016

The Borla version should have a little more noticeable noise between v4/v8 vs the GM Borla version with the flapper. I can barely hear mine with the flapper clamped open with my Borla buffler and resonator cut out.

boker · July 16, 2016

thank you

Blue-Audi · July 17, 2016

Has anyone recently installed this exhaust? I just received mine and the "exhaust bypass" looks like this. It certainly looks different the the other ones in this thread. I emailed Borla but have not received a response. I'm just wondering if I received the correct part or Borla has changed it for some reason. Thanks for any assistance.

Prong · July 17, 2016

Is yours for a 5.3? I have a 6.2 and I got mine (love it by the way) last Saturday and mine has the small "bypass" tube.

Blue-Audi · July 17, 2016

It's a 5.3. Thanks for your response.

1911-A1 · July 17, 2016

Has anyone recently installed this exhaust? I just received mine and the "exhaust bypass" looks like this. It certainly looks different the the other ones in this thread. I emailed Borla but have not received a response. I'm just wondering if I received the correct part or Borla has changed it for some reason. Thanks for any assistance. image.jpeg

Installed mine last Saturday also.It has the bypass tube just like others have posted photos of.Never seen one like yours.

Mine is a 5.3

Blue-Audi · July 18, 2016

Well I received some news today from two different sources that said GM changed the design to have an internal bypass. One source was the vendor I purchased the exhaust from and the other was from Borla corporate. If you are purchasing new, the exhaust will not have the external bypass tubing. I'll let you know how it sounds when I have time to install this weekend. Thanks for the assistance.