What's this?
Thread Starter
Teching In
Joined: Oct 2023
Posts: 6
Likes: 1
From: Florida
What's this? 
I recentlreinstalled the Speed engineering exhaust on my Firebird and it my first install so learning experience all in all. This hose was attached to the manifolds on either side but I Have no idea what they do or what they are
Joined: Nov 2001
Posts: 34,603
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From: Schiller Park, ILL Member: #317
Yes, as stated above, that's an AIR tube and there should in fact be one on each side. AIR (Air Injection Reaction) is a component of the emissions system, it injects fresh air into the exhaust system. This is not something you need if you don't have a visual emissions inspection to pass. You can delete the entire system and disable the codes with custom tuning.
Thread Starter
Teching In
Joined: Oct 2023
Posts: 6
Likes: 1
From: Florida
Yes, as stated above, that's an AIR tube and there should in fact be one on each side. AIR (Air Injection Reaction) is a component of the emissions system, it injects fresh air into the exhaust system. This is not something you need if you don't have a visual emissions inspection to pass. You can delete the entire system and disable the codes with custom tuning.
Thread Starter
Teching In
Joined: Oct 2023
Posts: 6
Likes: 1
From: Florida
Yes, as stated above, that's an AIR tube and there should in fact be one on each side. AIR (Air Injection Reaction) is a component of the emissions system, it injects fresh air into the exhaust system. This is not something you need if you don't have a visual emissions inspection to pass. You can delete the entire system and disable the codes with custom tuning.