FLP Headers - Rusting After 4K Miles - WTF?!?
Anyway...
The coating on the inside of my FLP headers has disbonded or otherwise come off. Since the coating has come off, bare mild steel is exposed. Condensation in the exhaust has oxidized the exposed mild steel and rust chunks have begun flaking off and exiting the tail pipes. This happened to my FLP header system.
I started the car two weeks ago and when I looked behind the car there were a lot of rusted metal flakes behind the exhaust tips. At first I thought it was the cats because the inside of the FLP's are supposed to be coated, and the rest of my system is stainless steel. After showing the material that came out of the exhaust to some local experts, we figured out what had happened.
We unbolted the X-pipe to cat-back connection and looked inside the X-pipe. Sure enough, it was rusted like crazy. I am worried now that my header pipes will plug my cats up with rust flakes. I know the car won't run if this happens.
Now you might be thinking, what did FLP say about this. I wish I knew. They seem not to want to return my tuner's phone messages to discuss an appropriate course of action. I bet if I called to place an order, they would call back right away. I only have about 4 or 5 thousand miles on the FLP system and as far as I am concerned, it is junk. I paid a lot for the system and to have it installed, so I hope FLP steps up and does the right thing.
Has anyone else here had a similar experience. If so, what remedy was offered by FLP?
I recommend that you guys with FLP's unbolt one side of your cat-back and check the condition of the inside of your X-pipe. Then, check your header pipes / merge collector.


I wish I had taken some pictures of the rust flakes so you could see the size and quantity.
Last edited by Blown Vette; Oct 7, 2004 at 01:09 PM.
So, I wouldn't expect the coating to work very well on the inside of the tubes. The headers coating is typically only guaranteed externally. If this bothers you, I'd recommend getting a set of stainless steel headers installed.
That really sucks......
Were the headers coated inside and out? I assume they were.......
Like was mentioned, go w/ stainless steel. I have heard of issues of excess heat, so coating these would be the best bet......
That is gonna cost you.....
If they won't return your call, just leave a message that you want to buy some headers....LOL.
Good luck
what is your screen name on CF?
I ran cats with FLPs on my C5 for a year and never had any problems. Usually the inside gets coated with carbon and they tend not to rust too bad. Unless they switched material and its some really bad metal, I have had 75.00 heddman headers on cars cars I drove all year and they never rusted inside - they rusted from the outside
P.S. my headers are about 2 years old.
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If this was true, GM's factory exhaust would also bang; they must think their customers are as dumb as George Bush.
So, I wouldn't expect the coating to work very well on the inside of the tubes. The headers coating is typically only guaranteed externally. If this bothers you, I'd recommend getting a set of stainless steel headers installed.
I've got a set of FLP LT's that have been on the car since 2000 with only 10,000 miles on them at the most. The collectors are already rusted pretty bad and the Y-Pipe may even be worse. I called Lo-Ko to see if they would do something about it and they said they would charge me $285/set of headers and $17/foot for the Y-Pipe, plus they'd only give me a 3 year warrenty.
I called Jet-Hot and they'd coat them for $279/set and $20/foot for the Y-Pipe, plus give me a lifetime warrenty.
I guess I'll go Jet-Hot.





j/k