- Dec 17, 2010
Actually, a lot of OEM exhaust pipes are stainless (yes, stainless DOES rust, just slower than plain steel). Manifolds being stainless is the only good example of cost, being a massive part. They don't use stainless hardware in aluminum because of galvanic corrosion.
Good for them. They're either complete dumbasses or they went the extra mile and have the holes lined with steel thread inserts. Stainless steel threaded into aluminum is a bad idea.