FWIW,here's my .02
Don't do it. I'm no expert but my guess is you will throw your PCM into a tizzy because the exhaust samples it is getting is not within its programmed spec's. It will try to correct the percieved problem by adjusting other engine inputs/outputs and I can assure you these adjustments will not be performance enhancing. More than likely it will cause your check engine light to come on.
Besides, nowadays there is little reason to do given the leap forward in converter technology. It has been found that in the Lightnings that the stock system performs the best and people lose power by going aftermarket. I unfortunately found this out the hard way on my L.
My advice is to stay green and either leave the stock one or buy a high flow after market piece if you think you need it. Besides, depending on where you live, you will not pass an emmissions test and/or inspection without it. It is also "technically" against Federal law replace any part of your emmission system, including exhaust, under 50,000 miles unless it is damaged or in need of repair.
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'93 Cobra, 1 5/8" FMS shorty headers, 2 1/2" Mac cat-pipes, Borla cat-back, 180 degree thermostat, 4" ram air, 3.55 gears, March pulleys, strut tower brace, Kenne Bell flip chip, Crane Hi-6 ignition, Crane coil, Global West Trac-Link, Hurst chrome shifter, Canton oil pan, BFG g-force kd tires
'99 L, JL Stage II Ram Air, Bassani cat-pipes, Borla cat-back, R9 Superchip, Cal-Tracs, Chassis Tech 2" drop shackles, Water Wetter
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