Upgraded Billet Twin Turbocharger TD04-17T for BMW 135i 535i Z4 X6 740 3.0L N54

What is Upgraded Billet Twin Turbocharger TD04-17T for BMW 135i 535i Z4 X6 740 3.0L N54?

The Upgraded Billet Twin Turbocharger TD04-17T is a direct-fit performance upgrade for BMWs equipped with the N54 3.0L inline-six engine, including the 135i, 535i, Z4, X6, and 740 models from 2008–2012. Designed to replace failing or underperforming stock turbos, this unit features billet compressor wheels for improved airflow, reduced turbo lag, and enhanced durability under increased boost. It's engineered to support higher horsepower builds while maintaining OEM fitment and compatibility with factory manifolds and downpipes.

Key features

• Billet Compressor Wheels — Precision-machined for improved airflow and response over cast wheels.
• TD04-17T Core — Upgraded turbo model supporting higher boost and horsepower than stock TD04-L turbos.
• OEM Fitment — Direct bolt-on for N54 engines; no modifications required.
• Durable Construction — Built to withstand higher temperatures and boost levels in tuned applications.
• Wide Compatibility — Matches multiple OEM part numbers including 758386301, 11657649291, and 456471001.
• Improved Throttle Response — Optimized housing design reduces lag for street and track use.
• Rebuildable Design — Serviceable core allows for future rebuilds or upgrades.

Who is Upgraded Billet Twin Turbocharger TD04-17T for BMW 135i 535i Z4 X6 740 3.0L N54 for?

This turbocharger suits BMW N54 owners seeking reliable power gains beyond stock turbo limits. It's ideal for enthusiasts running mild to moderate ECU tunes, intake, and exhaust upgrades who want improved throttle response and sustained boost. DIY mechanics with basic turbo installation experience or professional shops upgrading customer vehicles will find this unit a cost-effective performance solution. It's especially valuable for those replacing failed OEM turbos with a more robust alternative.

How does Upgraded Billet Twin Turbocharger TD04-17T for BMW 135i 535i Z4 X6 740 3.0L N54 compare?

Compared to stock TD04-L turbos, the TD04-17T offers larger compressor wheels and improved flow characteristics, supporting up to 450–500 horsepower reliably. It outperforms standard remanufactured units by using billet aluminum components instead of cast, reducing the risk of wheel explosion under boost. While not as large as aftermarket journal bearing or ball-bearing kits requiring manifold changes, this unit strikes a balance between power, fitment, and cost. It's a smarter upgrade than basic replacements, offering enhanced performance without sacrificing reliability or installation simplicity.