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SPOOL B58/S58 BILLET RACE TORQUE CONVERTER UPGRADE - NO CORE REQUIRED!
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SPOOL B58/S58 BILLET RACE TORQUE CONVERTER UPGRADE - NO CORE REQUIRED!

SP-58-TQCNV-NC
Transmission
$2,199.00
$2,199.00

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Spool Performance B58/S58 Billet Race Torque Converter Upgrade

Introducing the Spool Performance X58 Billet Race Torque Converter, engineered for all B58 / S58-powered vehicles equipped with the ZF 8HP50, 8HP51, or 8HP76 transmissions.

Built to handle serious power, our X58 converter features:

  • Billet drive plate

  • Billet stator

  • 3800–4000 RPM high-stall option

This upgrade is the ideal solution for enthusiasts pushing larger turbo setups and demanding maximum performance without sacrificing drivability.

High Stall Without the Headaches

One of the biggest complaints about other high-stall converters is poor street manners. We specifically designed the X58 to retain near-stock drivability, allowing smooth operation in stop-and-go traffic while still delivering the high stall speed needed to fully utilize your turbocharger’s powerband.

You get the best of both worlds:

  • Aggressive launch capability

  • Comfortable daily driving behavior

No Core Required

Unlike many competitors, we do not require your stock core. Our converter is fully compatible across all X58 models running the 8HP50, 8HP51, or 8HP76—making installation straightforward and hassle-free.

In Stock & Ready to Ship

We keep these units in stock and ready to go. Simply place your order, and we’ll prepare it for shipment right away.

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We have a 10-day return policy, which means you have 10 days after receiving your item to request a return. Any return or cancellation will be 10% Fee. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at support@euroklasse.com. If your return is accepted, Items sent back to us without first requesting a return will not be accepted. You can always contact us for any return question at support@euroklasse.com. Damages and issues Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right. Exceptions / non-returnable items Certain types of items cannot be returned, like perishable goods, custom products (such as special orders or personalized items), We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item. Unfortunately, we cannot accept returns on Sale/ Discounted items or gift cards Or . Exchanges The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. Refunds We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

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