Is this normal?

[John1c]

Was looking under my brand new 2020 Silverado and noticed this indent on these pipes.. this normal? 

[greco2003]

Idk the thread it was covered in one of the exhaust threads and it seems to be normal 

[JimCost2014]

12 minutes ago, John1c said:

Was looking under my brand new 2020 Silverado and noticed this indent on these pipes.. this normal? 

Yes, guessing you have a 6.2?

 

Done for clearance, GM says it has no ill effects. But it is a WTF moment when you first see it.

Edited February 18, 2020 by JimCost2014

[f8l vnm]

that has to be blocking some air flow. I dont think its gobbing tons of HP but thats it for sure airflow disturbance. 

[John1c]

I have the 5.3 trail boss 

[lapoolboy]

11 minutes ago, f8l vnm said:

that has to be blocking some air flow. I dont think its gobbing tons of HP but thats it for sure airflow disturbance. 

Not really.  A round pipe pressed into an oval still has the same internal cross-section area.

[JimCost2014]

22 minutes ago, John1c said:

I have the 5.3 trail boss 

Same answer, yes it is normal.

[dtnel78]

1 hour ago, John1c said:

Was looking under my brand new 2020 Silverado and noticed this indent on these pipes.. this normal? 

They do make them this way these days as that's known as hydroforming. You could ask the dealer to be sure next time you're by there and see what their response is. 

 

Was watching something on TV the other day and had something about hydroforming on with today's automobiles. Pretty cool if you ask me. Google it or search on YouTube and you'd be surprised. 

[theCATALYST]

Yes sir, perfectly normal. You should have seen the pipes under my Camaro 2SS. I was amazed when I first seen them look like that.

Edited February 18, 2020 by theCATALYST