are these worth it, how much hp can you make. or should i spend $$$ on something else like lightened flywheel or hi flo cat? or maybe a fuel computer?

 

if you've got all the other bolt-ons, it would be nice. i have a 70MM and i have only an exhuast; not as useful, but i got a really good deal on it. throttle response is a lot better and it has more power in the low-mid range. i can't wait to get everything else into the car to see the combined result. remember, one mod won't do much. a plethora will.