I have recently done the compleat hella ff-75 conversion(high low fog) ,was looking for some good replacement bulbs(h7) but the piaa bulbs are so expensive,are they really that good?are they worth the money?

 

While I haven't used the H7 bulbs I do have PIAA 9006 low beam bulbs in my Camaro and have used their H4 bulbs in an H4 conversion on an S10 Blazer. They are nice but not for the price. I bought Silverstars for my S10 and they are almost identical in light output and color to the PIAA's for half the price.