Turbosmart 6870C vs PSR 7375 on a Single-Turbo S58 – The Spool Difference Is WILD #singleturbo #s58

In this video, I break down the *real-world power and spool differences* after swapping turbos on my *single-turbo S58 setup**. We went from a **PSR 7375* to the **Turbosmart 6870C**, and the results speak for themselves. This isn’t bench racing — this is **actual data, driving impressions, and performance comparisons**. We’re talking spool characteristics, mid-range response, and how each turbo behaves under load on the S58 platform. What’s covered in this video: PSR 7375 vs Turbosmart 6870C comparison Spool difference & boost response Power delivery changes Street & real-world drivability Why the 6870C may be the better balance for this setup Setup highlights: Single-turbo S58 CMbuildz Open-scroll configuration JB4 Pro tuned Real pulls, real data If you’re debating *spool vs top-end power* on a big-turbo S58 build, this video should help make that decision easier. 👇 *Support the build* Shop performance parts & merch: 👉 [https://cmbuildz.com](https://cmbuildz.com) Follow the build on Instagram: 👉 @cmbuildz Like, comment, and subscribe for **real results, no fluff**, and more single-turbo S58 content.