I need to know what offset is safe to run on my 00 Si. I have it dropped 1.75ish on Tein Ra's and I am not 100% sure the best offset to run. I plan on only running 15's or 16's but not 100% if 40 offset, 42 offset or 45 offset is the best choice. Also, running 5x114.3 but not sure if that makes any difference. Thanks in advance for any help guys.

 

Without knowing the width of the wheel, its really not possible to give you an accurate answer. Offset is a measurement from the center of the wheel, so therefore its width matters most.

 

My fault, looking at 7in.

 

With a somewhat mild drop i think any of those offsets will be fine with a 7" wide rim. None of those are far off from each other and far from low offset.

 

I would prefer the 40 offset with a 7" wide wheel. That way, it'll allow you enough clearance at full lock to the inner fenderwell, to allow for larger tires. +35 offset is about as low as you can get before outer fender/quarter panel clearance is an issue.

 

We'll be between 38 and 40mm ET for a 15x7 at stock ride height. For your application Matt is correct that 40+ would be better.