I was looking to do the 300zx front brake upgrade for my 95 240sx se. I just got new wheels that are 17x7 with a 48 offset. I was looking into getting the 30mm calipers and I was wondering if it will fit with those size wheels. Thanks

 

If you'd search, you would find your answer.

In short, sizes and offset don't mean anything if the wheel design isn't proper.

However, with it being a +48, it's probably not going to fit and they will be EXTREMELY tucked into the fender...

 

I have Enkei RP02's on my 89 and just did the 5 lug swap, I got +40 offset, and they are perfect. My 40 offset put my wheels right out there where they don't rub, just. If you have a 1" less rim and your wheel will be .320(8mm) more inward, then you will be close to rubbing. a 1/4" to 3/8" spacer plate will make them work, a 1" like the H&R will get you max width and better looks.

 

Im pretty sure it wont clear the calipers. But its all up to spoke/wheel design. Test fit, then if it doesnt work buy a wheel spacer