I did one on a 98se. svt lower,(stock se injectors) svt upper, svt tb,bosch plat.+4s, and injen intake pipe. An educated guess would say 15-20. Very good increase in power and sounds almost like stock svt. The se and my svt will race and try to get a good guess-timate. email @ blegit20@aol.com w/ questions.
