Are there any adverse affects of extending the MAP line?

 

Don't see why there would be. Vacuum is vacuum. On turbo setus vacuum lines run pretty far with no ill effects (for example wastegate to mani).

 

Thanks. I didn't think there would be any either. I just thought that I should try to get the most accurate reading with a short line. I'll try it anyway and check for any difference. Thanks again for the quick reply.

 

Its generally suggested that you keep the vacuum lines as short as you can. While extending them only a few inches shouldn't have any adverse effects, however, extending them a few feet may.

 

Get TB with a map sensor mounted to it. Much cleaner.