With the tuner you could turn off the rear o2 sensors which come on usually after installing an o/r mid pipe...but an aftermarket catted midpipe can trip the cel. The mil eliminators would do the same thing the tuner would but that's it. With the tuner you get a performance tune right out of the box and the opportunity to get a custom tune at a local shop. Not to mention you can read cel codes and fix speedo changes if you add gears etc.
Get the tuner and a custom tune at a local shop. That way you can have piece of mind and better performance all in one.
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2004 Redfire GT
BBK Longtubes
BBK O/R X-Pipe
Magnaflow cat back
Steeda Sport Springs
Tokico HPs
Black Bullitts
Mach 1 Grill Delete
Mach 1 Chin Spoiler
Mach 1 Rear Wing
Honeycomb Trim Panel
Blackout Tails
Simco Silver Series Gauge Cluster
Awaiting Install:
 FRPP 4.10s - Trick Flow Diff Cover
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