Why not dyno before mod... then after... and ONLY tune to delete O2 codes and see what the gains are?
I just can't see that my car would benifit from no cat (bullet muffler) from a high flow cat.
My car would be ongodly loud/ ricerish
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2013 Dodge Challenger SRT8 - 12.079 at 116.45
2010 Ford Taurus SHO - stage 4+ tune and an intake - no times yet
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