Exhaust size?
Team Owner
Joined: Dec 2000
Posts: 21,094
Likes: 282
From: Phila., PA burbs
Re: Exhaust size? (Tim89)
I'm pretty sure the stock size is 2 1/4" diameter. I've heard the rear y-pipe with the crossover built in cuts down on interior resonance, but I doubt it does much for performance. I think going to 2 1/2" front and rear y-pipes would give you a better performance gain. I'll let you know next week when I have mine installed.
Thread Starter
Racer
Joined: Aug 2001
Posts: 416
Likes: 0
From: Astoria OR
Re: (scorp508)
Where can I find a 2.5in rear Y? The ones I have seen are 2.25in. Do I have to have one made? The ones I saw in the forum mall are "86-90 Factory-style Y-pipe, rear, w/factory heat shields" ZIP-EX-432-SC" and "86-91 Crossover tube Y-pipe, O/S" ZIP-EX-479-SC" but I don't know the diameter of these.
[Modified by Tim89, 4:46 PM 5/27/2002]
[Modified by Tim89, 4:46 PM 5/27/2002]
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