- 2" i.d. Inlet and outlet, centre and centre spigots, 8" x 4" x 14" muffler case.
- Aluminised mild steel construction withstands high temperatures and harsh conditions.
- Baffled glass packed design promotes smooth exhaust flow and delivers a mellow, less raspy exhaust note.
Replace your Holden HQ, HJ, HX, HZ exhaust system with the GASO Oval Muffler, engineered for performance, durability and sound refinement. Featuring a Baffled Glass Packed internal structure, this muffler improves exhaust flow while delivering a mellow, deeper exhaust note compared to more aggressive straight-through designs. Built from mild steel, it offers excellent resistance to heat, corrosion and harsh conditions. The compact 8" x 4" oval case and 14" barrel length make it ideal for performance setups requiring both strength and fitment flexibility. The Centre/Centre 2" I.D. spigot configuration allows easy integration across a wide range of vehicle applications, not just Holden HQ-HZ models.