Circuit Werks is now offering Front(upstream) o2 extension harnesses for Mustangs. Perfect option rather than cutting the harness, having issues with a poor connection and this is also faster and easier.
Designed for the use of custom applications or header/ exhaust modifications.
- Comes with 2x - 27" o2 Extension Harness
- Fits 2015-2017 5.0L GT Mustangs
- Loom uses a flexible high temp cover
- These harnesses vary slightly but will be a minimum 27" long