We've got MAC long-tubes, pain to put in, have problems with drivers side #2 tube (I believe) rubs the steering linkage. I've heard the same think with BBKs and other lts. If you're going with long-tubes and you can afford it - get them JetHot coated! We decided against it - but now looking at the headers starting to rust with the HTS coating, we wish we had spent the money on JetHot coating.
You will also need to extend the O2 sensor wiring on the right side as the O2 sensors are now a little further back. You can do this one of two ways - get an O2 extender - or simply add some wire, make sure it's the same guage, and you use shrink wrap tubing to make it water tight.
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