Join Date: Feb 2011
Location: Edmonton, Alberta Canada
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It's normal and no it will not rust thru. It's just surface rust as due to the nature of diesels and the protective layer of soot it only rusts externally. If you don't like the rusty look get them ported and ceramic coated.
SCT, no studs...yet, Dual OEM intake air filter housings, Banks intercooler & intake elbow, Banks exhaust system, Windrunner ported intake manifold, Bullet Proof Diesel remote oil cooler & thermostat, AirDog2 (plus a couple spares), Power steering filter (Amsoil dual-bypass), MagTec deep ATF pan, Electric oil pre-lub pump, Dakota Digital gauges.