heres a few options
- if you live in CA - Greddy is the only legal one
- if you have A LOT of money and want A LOT of power - Full-Race is the best
- Drag is kind of an economy line but will make great power
- revhard will make medium power, for a reasonable price, but the quality and customer service is questionable...
those are just a few options, there are thousands out there...u need to set a specific HP goal, or what your car will be used for primarily... if this is a daily driver, ur not going to want a 400hp beast, adversely, if this is a track only car, your not going to want anything cheap w/ mediocre power....
thats what they mean when they say they want more details, i suggest you find out exactly what you want out of the car, then spend your hard earned money
just my .02