[KirkEvil]

Originally Posted by LTb1ow

While I agree with your points you have made good sir, I will say that stock parts are designed for longevity and passing certain tests, IE safety and emmisions being the big hitters. I can guarentee OE stuff goes through a much more rigorous vibration and expected life span design process and test procedure than say coated pacesetter headers etc.

Now, aftermarket parts sacrifice this in many cases, with removing the cars origanal ability to A) run for an almost indefinite period of time without the need for adjustment, or replacement B) Pass all inspection tests assuming the state actually performed safety and or emissions testing

Most middle of teh line aftermarket parts will not last nearly as long as OE stuff before they start to wear out, or even worse fail. Newer engines, GM V8 wise are coming with more efficient exhaust manifolds and other parts, so the aftermarket for that niche may need to work harder to justify the need to replace stock parts anymore.

framboi