# New products in stock **URL:** \ **Category:** Vendor Marketplace\ **Created:** [January 30, 2010, 5:52am UTC](https://forums.speedlife.net/t/new-products-in-stock/131166 "2010-01-30T05:52:35Z")\ **Posts on this page:** 1\ **Showing post:** 27
**Author:** ![NewfoundlandDude](https://avatars.discourse-cdn.com/v4/letter/n/9fc348/32.png) [@NewfoundlandDude](https://forums.speedlife.net/u/NewfoundlandDude)\ **Post date:** [February 22, 2010, 8:45am UTC](https://forums.speedlife.net/t/new-products-in-stock/131166/27 "2010-02-22T08:45:08Z")
> [@Spider's on drugs (Funny Vid)](https://forums.speedlife.net/t/spiders-on-drugs-funny-vid/26059/8): > > I am still trying to figure out the models before I can get pricing. It looks to me like the Apexi mentions no difference between the water passages or anything, but it comes in two bores, and FOUR thicknesses, making a total of EIGHT variations? What would be most common? Apexi “probably” has a design that allows for the S14 SR passage, and on the S13 obviously just sits against bare metal. I mean the passage is probably there, and probably just useless on the S13 SR, where there is no extra passage. Just a guess. As far as bore and thickness is concerned: Stock pistons are 86mm, Apexi uses 87mm for this. They probably have a larger bore for larger pistons? Not sure. Thickness will fully be dependent on how much (if any) material is decked off the block/head during a rebuild. I’m not sure on stock thickness right now, but you basically go with a greater thickness to make up for the lost material on the deck. Lots of companies offer a lot of thicknesses, and it’s basically what the builder wants at the time. --- _[View the full topic](https://forums.speedlife.net/t/new-products-in-stock/131166)._