2016 Silverado 5.3L 8-Speed Plugs & Wires Replacement Reccomendations?

[xch4s3]

Looking to replace plugs and wires, wanted to see what everybody is running. Coming up on 100,000 miles, and besides that, hoping that replacing plugs and wires will improve my truck's issue of bogging down when trying to accelerate. Unless I floor it, my truck bogs down.

[swathdiver]

Bogging is usually a sign that one or both of your catalysts are toast.

 

Most people use the OE spark plugs and wires or go with NGK (who makes them for GM).  I cannot make a specific recommendation for yours, it's not my area of expertise.

[xch4s3]

1 hour ago, swathdiver said:

Bogging is usually a sign that one or both of your catalysts are toast.

 

Most people use the OE spark plugs and wires or go with NGK (who makes them for GM).  I cannot make a specific recommendation for yours, it's not my area of expertise.

Thanks!

[swathdiver]

You ought to put some kind of scan tool and monitor your downstream oxygen sensors.  If they are moving as much as the upstream sensors, that is a sign that the cat(s) are bad.

 

Eventually they'll start throwing codes.

 

I replaced mine with Magnaflow Y-Pipe and Cats about 4 years ago.  Cheap Chicom cats don't last a year.  Buy once, cry once.  Just make sure that is the problem before whipping out the ole wallet!  I ain't always right in my armchair diagnosis'!

[xch4s3]

Sounds good lol thank you!

[DCazares]

A bad cat would throw CEL codes almost immediately and you would feel no power under acceleration.  I just replaced mine as Bank 2 was clogged after one of my DOD lifters collapsed.   Buy oem AC Delco wires and plugs to see if fixes your issue. 

[xch4s3]

Thank you!