Yellowing on rocker panel from heat??

[Dakota Viper Collector]

I started my GT2 up today and let it run for about 15 to 20 minutes in the garage with the door open. When I shut it off I noticed some yellowing on the rocker panel right in front of the door. Has anyone ever experienced this or is it only noticeable because it is white?

 

[ceieio]

Not right in front of the door... I had some yellowing at the very front that was covered by the hood when closed. I remember a post in the past where someone had yellowing in the door area that occured relativly quickly. As I recall the cause was a plugged / defective cat causing heat buildup and rapid discoloration...

 

[V10 MOJO]

heat, get hiflo cats. prior to hiflo cats (really shows on silver)i had my rockers painted twice; thankfully under warranty

 

[Chuck 98 RT/10]

Normal. My red side sills are beyond discoloring, the paint is flaking off. But I have 66K miles on it.

I would pull the rockers, paint the inside with VHT paint. I've heard of folks wrapping the cat in header wrap.

 

[genXgts]

Don't pull the insulation, I learned that the hard way.

Painted inside of sill with POR15, ceramic coated everything inside and out,and dropped my burnt to a crisp side sill insulation.

What was only a slight yellowing at the inside edge of the sill turned into full yellowing after a track event.

I repainted them, put the charred insulation back on and so far so good, although I suspect a track event where you are flagged off and then shut off would be a worse case for heat soak, the temp gauge was pegged on the track. I let a little idle time but didn't help much. Some say the idle temps are obscene as well as no air flow.

I have high flows Roe ovals for all of the above for reference.

 

[Neil - UK]

its a well known 'fault', and shows up more on different colored paint schemes, i've had mine resprayed under warranty after replacing the OE cats. Rocker sill temperature is greatly reduced and I can keep my hand on them even after a long run