o2's
Well, a hole host of things could happen, such as poor idle quaility, hesititations or backfires at low speed operation, and increased fuel consumtion to name a few.
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Proud RHC member #99
1990 Mustang GT Trick Flow heads,F303,Mac cold air,FMS 65mm tb,73mm ma,FMS 1.6,GT-40 intake,MSD igintion,NOS Big Shot@150,Mac equal shorties,Mac h-pipe,American Thunder flows,Centerforce dual friction,TTC 3550,alm drive shaft, 3.73's, HPM subframes, k-member brace, strut tower brace.. amongst others.
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