I've only put 100 miles on my new Street Glide and noticed some discoloring on the chrome on the end of the pipe (more on the left pipe). I assume this would happen over time but not within the first 100 miles. I've had one forum member state when they put it on the DYNO they might not have run a couple pre heat cycles with the pipes first. I've read on another thread a member stated he loves these pipes but had to clean them a lot. Just trying to narrow down the cause. Again, I know these pipes won't stay "chrome" forever but would have at least liked the chrome to "shine" a lot longer than 100 miles. Any input is greatly appreciated.

 

I had the same set of HO's and Vance & Hines replaced the caps two times. Finally gave up on them.

 

Always the left side will change colors there is gasses that are expelled through the left side. When it's running after 10 minutes or so when idle. Feel the air on the right pipe compared to the left. Right should be cooler then the left the combustion is expelled out the left side. I use the aluminum polishing wads from the auto parts store clean once a week and no problem.

 

You changed the end caps on HO pipes from V&H.. All you had to do is clean them.

 

Great advice...THANK YOU! This gives me some Peace of Mind.

 

You're welcome. I just looked in my shop and the product I use is
Eagle one aluminum wadding polish.
Below is what it looks like.

 

Same answer..only discoloration I see in the inside of the tips and that is cured with cleaning them.

 

No they would not clean up.

The were bluing around the inside edge of the end caps on both sides. On the inside edge where it meets the muffler itself. Was very weird, like they were leaking where the cap meet the muffler.

Vance and Hines had never seen anything like it.

 

Ya that is weird. First time I have heard of that happening.