JDY Performance STG1 BMW S58 3.0TG8X Pistons by Diamond

Unleash extreme horsepower with precision valve control. JDY Stage 2 Racing Camshafts are engineered for BMW S58 engines built to deliver 800–1400 HP. Designed for 66–75mm turbo setups and aftermarket intake plenums, these cams maximize airflow and valve lift while retaining full compatibility with Valvetronic and Dual VANOS systems.

🔧 Key Features

• Performance Specs

  • Duration: 292° / 280°

  • Valve Lift: 10.40mm / 10.60mm

• Engineered for High‑Power Builds

  • Supports 800–1400 HP applications

  • Optimized for Stage 2 racing setups with larger turbos

• Valvetronic & VANOS Compatibility

  • Full use of Valvetronic and Dual VANOS

  • Option to lock Valvetronic when using aftermarket throttle bodies

• Valve Train Integration

  • Designed to pair with Kelford KVS58‑BT valve springs

  • Custom valve pockets for Stage 1, 2, and 3 camshafts

  • Clearance checks recommended for VANOS and Valvetronic travel

• Proven Performance

  • Independently tested by multiple engine builders

  • Documented dyno results confirm significant gains with cam swaps

JDY Stage 2 Racing Camshafts give your BMW S58 the airflow, durability, and precision needed to dominate on the street or track.

If your item is in stock and the order is placed before 3 PM, it will ship the same day. Products that include ceramic coating are shipped the following business day. If the product or color you’re looking for is out of stock, you can join the waitlist by clicking the “Email When Available” button. We’ll notify you as soon as it’s back and provide an estimated restock time.

Custom Orders
For custom requests, please email us directly. We’ll review your order and provide an estimated delivery time based on the required manufacturing process.

Damaged, Incorrect, or Missing Items
If your order arrives damaged, incorrect, or missing parts, simply email us a photo along with your order number. We’ll arrange a refund or exchange right away. Contact us at info@ttmengineering.se and we’ll make it right.

Returns & Satisfaction
Unused and uninstalled products are eligible for a refund, exchange, or store credit. Unfortunately, once a product has been used or installed, we cannot accept returns or offer refunds. If you decide you don’t like a product after installation, it will not qualify for return.

Restocking Fee
A restocking fee of 20% of the original purchase price may apply to returned products. This fee covers the costs of processing and restocking. Please refer to our Policies Page for full details on exchanges and returns.