u racing an oldmosobile cutlass or something? Get headers, CAI, 2 1/2" catback and take out the Cat. Maybe stuff a sponge inside the tailpipe of the car your racings and take a broom and shove it in there so it gets lodged. That should restrict some of his airflow and give you an un-fair advantage. Cheap, but if all you wanna do is beat him, then go for it.
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