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Engine Keeping O2 sensors lit with long tube headers

  • Thread starter Thread starter keel
  • Start date Start date Jul 30, 2026

keel

Active Member
Aug 23, 2020
267
119
53
Seattle, Wa
Jul 30, 2026
#1
  • Jul 30, 2026
  • #1
For context, I have BBK ceramic coated long tubes (rusty after only a couple years by the way) and no cats. I noticed that my car tends to idle and take off from stops smoother after I've been beating on it, especially in cold weather. I have a theory that it is because I get more heat in the exhaust and the O2 sensors are struggling to stay lit under normal driving conditions.

I'm wondering if anyone has heat wrapped their long tube headers and gotten their car to run better by doing it, or if what I'm experiencing has nothing to do with the O2 sensors. Or even just wrapped the collector near the area where the O2 sensor screws in, so that way the headers don't need to be pulled off the car.
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
6,130
4,216
183
Claremore, OK
Jul 30, 2026
#2
  • Jul 30, 2026
  • #2
O2’s self heat. I would ceramic coat those headers before I did anything else. I’ve seen a few sets on street cars rust out underneath header wrap.
 
Reactions: General karthief

keel

Active Member
Aug 23, 2020
267
119
53
Seattle, Wa
Jul 30, 2026
#3
  • Jul 30, 2026
  • #3
AeroCoupe said:
O2’s self heat.
Click to expand...
Did not know that.

Are you saying that it's best to ceramic coat before wrapping or ceramic coat instead of wrapping?
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
6,130
4,216
183
Claremore, OK
Jul 30, 2026
#4
  • Jul 30, 2026
  • #4
In lieu of the wrap.
 
Reactions: keel

Qtrhrse23

Active Member
Jul 2, 2024
72
28
28
Texas
Aug 21, 2026
#5
  • Aug 21, 2026
  • #5
Yea literally MILLIONS OF foxes running around with long tubes for years with no issues.
 
Reactions: General karthief and AeroCoupe
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