I need to get a tune for my Dynatech LT's, should I go with Brenspeed for $75 and wait a week, or go with a performance shop here in town that will dyno(3pulls)tune the car for $100?
You don't NEED a tune for LTs at all, though if you have an off-road setup then you need to turn off the rear O2 sensors (I sent you a PM about this).
If you want to get a custom tune just for the heck of it, I would get it from a local guy on the dyno, assuming he knows what he's doing. Nothing against Brenspeed, but Dyno is generally preferable to mail-order.
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Black 2006 GT Coupe Dynatech LT headers & X; Borla catback C&L CAI; 93 oct tune Full BMR, Spohn & Steeda suspension D-Specs; Alum driveshaft Second Skin Audio damping; Infinity spkrs; Goodyear Eagle F1 255F/295R - FR500 wheels