Forum: EcoModding Central
12-07-2022, 07:09 PM
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Replies: 10
Views: 1,186
If this is in a truck, you want Thorley Tri-Y...
If this is in a truck, you want Thorley Tri-Y headers. I have had them on 2 different small block powered vans. My G20 van and my Express van have both had Tri-Ys. Noticeable torque gains from...
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