dchandler60 10 Report post Posted April 4, 2007 I ordered the 2.5" Magnaflow exhaust kit and was wanting to know if the ss pipes are 2.5" OD or ID?? I need to order header collector reducers and need to know what to order 3" to 2.5" ID or OD. Thanks for the help. David Share this post Link to post Share on other sites
