SOHO's Z exhaust might be meh, but they have great taste in brakes.
Claiming -40 lbs unsprung weight savings:
-12 lbs per front corner savings, -5 lbs "or so" per corner off the rear.
https://www.z1motorsports.com/z1-products/z1-motorsports/z1-2023-nissan-pro-true-style-coilovers-p-43107.html?list_name=CategoryCoiloverKits&oid=43107:0:83468:50&qid=913c885af00ea213c1bed78ed0691240
Spring Rates:
Front - 16k
Rear - 8k
Features:
Standard with Swift springs!
30-Way adjustable...
Looks like they are going the single pipe route on the Z, unless this is just a photo-op, proof of concept prototype. I couldn't find any other official posts from them since this one in December.
Take away point: The rear springs on the new Z are identical to those in the 370Z. Up front, springs and struts need to be swapped.
Top strut (black) off of the new Z vs 370 (silver) on the bottom.
I am aware that B&C Racing in South St Pete is one of two vendors selling an air-to-air conversion for the VR30.
I'm also aware that they took a fair amount of flack on infinitiQ50.org a couple months ago (October 2022)...
https://stillen.com/products/2023-nissan-z-stillen-cat-back-exhaust-street-series-sku-504503-504504-504505
After months of exhaustive testing the team determined that the best design starts with a stainless steel flange precision tig welded to 2.5” tubes leading into a CNC bent and CNC...