Exhausting gases.
By Steve Ells
A well-designed Experimental exhaust will have high quality 321 stainless tubes, neat welds, and flex points to prevent long-term cracking. This one is from Aircraft Exhaust.
Exhaust systems arent much to look at. At their best theyre gray or black, and as the hours pile up they eventually turn a sort of muddy yellow. Its easy to ignore your engines exhaust system, yet that set of pipes is one of the most important of all firewall-forward accessories.
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