No it will not make a difference on a street car, you only shave off 1/10 of a second for each 100lbs you take off the vehicle. On a street car it's not worth it all, but to the hardcore dragster going from 14 seconds to 13.90 at the cost of 100lbs is well worth it.































Some other options:















Cold Air Intake or Short Ram Intake















Headers















Lightened Flywheel















Stage I or II Racing Clutch















Aftermarket Camshaft and Valve Springs















MSD Ignition system















Aftermarket Intake Manifold and Throttle Body















Also with the GSR motor there's the possibly of dropping in an LSD for the tranny. (I can't remember which B18 tranny's came with LSD though)