Originally Posted by batboyvaj

It's probably not your test pipes. But since your dealer is already telling you they think it is because of the test pipes, it's probably best for you to take off the pipes so they can't blame anything on that. Just make it easier for yourself.

Once you have the pipes off, then see if the problem comes back. If it doesn't, then your pipes were the issue. If it does, then you can take it back to the dealer with no hassles. Win - Win situation.