I finally did it! I've had the MagnaFlow waiting to be installed since Christmas, and ordered the JLT RAI last week. The RAI was delivered Friday while I was at work so I installed it that night when I got home around midnight. Wow, I didn't think it would be that big of a change with the stock exhaust still in place. Before the RAI the boost would max just before the 10# mark, now it easily pegs the guage. The blower noise is more pronounced, but that's a bonus. Saturday morning I put the car up on jack stands and installed the MagnaFlow. What a sweet sound! Nice quiet idle, American V8 rumble at part throttle, and love the sound at WOT. I made the right exhaust choice, my neighbors won't make me sell the house and move.
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