When it comes to motorsport, every component counts — and your wiring loom is one of the most critical (and most overlooked) performance upgrades you can make. If you’re still using standard PVC or TXL wire, you're sacrificing reliability, safety, and weight savings. Enter the Tefzel (ETFE) M-22759 motorsport loom — the Mil-spec standard for high-performance wiring used by all elite motorsport, aerospace, and military.
What Makes Tefzel Wire So Special?
Tefzel wire (officially ETFE-insulated M22759/16 spec wire) offers outstanding heat resistance up to 150°C, exceptional chemical and abrasion resistance, and a lightweight, compact form factor. In motorsport, where space is tight and conditions are extreme with high vibration, this translates to massive benefits of reliability over standard PVC or TXL wire.
Tefzel Loom vs Standard Automotive Loom
| Feature | Standard Wire (PVC/TXL) | Tefzel Motorsport Loom |
|---|---|---|
| Material | PVC or TXL insulation | ETFE (Tefzel) MIL-SPEC |
| Temperature Rating | ~80°C | Up to 150°C |
| Chemical Resistance | Moderate | Excellent |
| Weight | Heavier | Up to 50% lighter |
| Durability | Low in harsh conditions | Extremely high |
Standard wiring looms are built for mass production — not for performance. Sure, they will do the job initially, but over time, they can melt, degrade, or short under race conditions, when combined with very high vibration. Tefzel looms are engineered for one thing: uncompromised performance under pressure.
5 Reasons to Upgrade to a Tefzel Motorsport Loom
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Race-Proven Reliability: With superior resistance to heat, vibration, oils, and solvents, Tefzel wiring won’t fail when you need it most.
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Weight Reduction: Shave off critical grams — Tefzel wire is lighter, helping improve acceleration, handling, and fuel efficiency. This may not be a big deal, but a complex wiring loom adds a considerable amount of weight when using PVC or TXL over Tefzel.
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Cleaner Installs: When combined with DR-25 heat shrink and Deutsch autosport connectors, your loom stays tidy, serviceable, and professional.
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Built for Harsh Environments: Unlike PVC, Tefzel thrives in high vibration, high-heat and fluid-exposed environments.
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A Long-Term Investment: No more chasing electrical gremlins — just reliable performance, season after season.
Trusted by Motorsport Professionals
From grassroots drifters to GT, WRC, F1 and Supercars, serious competitors rely on Tefzel looms to deliver dependable results. It’s not just a wiring upgrade — it’s a performance decision.