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TBI tune after installing headers and dual exhaust
Both of my exhaust manifolds were cracked so I replaced them with a set of Headman long tube headers with 2.5" dual exhaust. I did not install cats but I did put mufflers on as I can't stand straight pipes. This is on an 89 4wd v1500 Suburban. The headers didn't have a bung for the o2 sensor, so...- Bryce Dean
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- Replies: 14
- Forum: Engine & Performance
