are your secondaries opening up? I got like 12-14mpg / loss of power when my IMRC was dead.
'99 SilFro SE V6 MTX
Alpine CDA-9833, 12" L7, Pioneer 6x8's, Fidanza Short Throw, K&N Drop-In, Spec1 Clutch/Flywheel, WR Headers / Y-Pipe, TBz Cat, PRT Roll Resistors
Mods in queue:
Trubendz Res. Magnaflow Ex.
SVT UIM/LIM/Opt.TB
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