Designed to complement Holley's LS Ultra Lo-Ram EFI intake manifold kits, this billet burst panel duct directs the discharge of an intake plenum backfire safely outside the vehicle bodywork on boosted engine builds.
Specifications:
- Construction: 6061-T6 billet aluminum
- Finish: Black anodized
- Fits: Standard "large" 6-1/8" x 3-1/8" burst panel (SFI-approved panels sold separately, e.g. Allstar Performance or Specialty Fasteners)
- Application: LS Ultra Lo-Ram intake manifolds, GM LS1/LS2/LS6
- Includes: 18-8 stainless steel mounting fasteners
- Recommended Use: Forced induction
- Warranty: Manufacturer's Limited 90-Day Warranty
- Part Number: 300-608BK
FAQ
What is the burst panel duct for?
It directs the discharge of an intake manifold plenum backfire and burst panel safely outside the vehicle bodywork.
Does it include the burst panel itself?
No, the duct is made for a standard "large" 6-1/8" x 3-1/8" burst panel, which is purchased separately from suppliers such as Allstar Performance or Specialty Fasteners.
What's the difference between 300-608 and 300-608BK?
The 300-608 has a clear anodized finish, while the 300-608BK has a black anodized finish; both include mounting fasteners.

