Replacement Extension Harness
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Explore Premier FinancingReplacement exhaust valve harness stretching from the OEM exhaust valve location to the valve located on the exhaust itself.
4 Pin:
Fits OEM style 4 pin valves such as BMW, Porsche etc
5 pin:
Fits OEM style 5 pin valves such as Corvette C8
Pairs well with
Replacement Extension Harness
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Product Questions
Will this fit my vehicle?
This part is made for the models listed above. If you’re unsure, send us your year, make, and model and we’ll confirm fitment for you.
What’s included?
You’ll receive exactly what’s shown. Hardware is not included unless the product description says otherwise.
How difficult is installation?
We recommend professional installation. If you’re local, you can book an install with us directly. Some parts may need trimming, drilling, or adjustment depending on your setup.
Do you ship internationally?
Yes, we ship worldwide. Contact us if you need help placing an international order.
How do I confirm fitment before ordering?
Fitment details are listed on each product page. If you’re unsure or your build has unique specs, submit the form and our team will verify compatibility before you order.
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With over a decade of hands-on automotive experience, award-winning builds showcased at events like SEMA and Bimmer Invasion, and established relationships with leading aftermarket brands, Eterna Motorworks brings real industry expertise to every purchase.
We're more than an online parts retailer. We're automotive enthusiasts and builders who understand the products we sell, giving you the confidence to shop with a team that knows the industry firsthand.
Eterna Motorworks can source or special-order nearly any component for your build — OEM-fitment parts, performance upgrades, carbon fiber aero, suspension, wheels, and even bespoke options depending on the platform. Click here to contact our team.
