I have the MAC longtubes, and they were not easy to install. They also corroded quickly. After a couple of years, I had them ceramic coated for $200 when I was rebuilding the engine.
I understand the BBK headers fit better, and are available with the ceramic coating option.
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Russ L
'91 LX
Procharger, 3 row intercooler, extrude honed Cobra intake, Mac full Length Headers, 30# inj., 73mm C&L, 75mm tb, E303 cam, 289 rods, ported E7 heads, MSD, T-Rex w/255 lph Walbro, 5 lug conversion, Cobra R wheels, 3.27 gears and Moser Axles.
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