I did a search, and does anybody have some numbers of before and after headers install? Before I drop 600+ dollars for them I'd like to know the marginal gain. SHOSHOP says they have seen up to 25hp, but I highly doubt it. I'm really interested in the torque gain. I know the SHM long tubes will gain you more tq due to the equal length long tubes, but i don't think they are offered anymore. Any help would be great. Thanks
