Holden Caprice / HSV Grange WM / WN Twin 3" Stainless Engine-back Exhaust System

  • $1,549.00

or make 4 interest-free payments of $387.25 fortnightly with Afterpay More info

Holden Statesman/Caprice and HSV Grange (WM & WN) Full Engine Back Exhaust

Replace the restrictive factory exhaust system with this brand new premium Empire Performance TWIN 3" stainless steel unit with large-primary extractors and high flow cats (optional).

1&3/4" primaries are perfect for high performance and cammed engines.

Supercharaged applications should opt for the 1&7/8" primary option.


Designed for the Holden Caprice /  HSV Grange, this stainless steel system unleashes the performance and sound that they should have had from the factory!

These are high flowing and tested on our own Empire Performance cars making in excess of 630whp with a Magnuson 2300 supercharger.

 These are one of the best sounding performance exhausts available today. No drone when cruising, but put your foot down and unleash the beast!

Similar systems sell for twice the price!

Cat Back Specifications:

  • TWIN 3" Piping
  • Rolled 3.5" quad-tip design
  • Free-flowing mufflers and NO MIDDLE MUFFLER so you can actually hear your car!
  • 2 bolt connecting flanges for bolt-on installation
  • Large X-Pipe to reduce drone and provide a smooth rumble
  • 2x in-line Hotdog Resonators to reduce drone
  • 304 Grade stainless steel piping
  • TIG welded
  • Mandrel Bent
  • Gaskets and bolts included

Header Specifications:

  • 1 3/4" primaries (optional 1&7/8" available)
  • 3" (76mm) outlets
  • Corrosion resistant stainless steel primaries, stainless steel components and rust resistant steel flanges
  • High Flow Cats Optional
  • 4 into 1 design
  • Tuned length
  • Mandrel bent
  • TIG Welded
  • Direct bolt on
  • Gaskets and bolts included
  • O2 sensor bungs included
  • Specifically designed for increased engine performance.

These are a proven design producing fantastic gains on Holden Caprice /  HSV Grange. 

Postage available Australia wide.

Please note:
  • These systems are a direct bolt-on, designed for DIY or professional installation.
  • Note - if you require the system for road use the high flow cat is required for road legality.

All Empire Performance Exhausts feature:

Mandrel Bent Piping

Empire Performance exhausts comprise of mandrel bent, stainless pipe work, delivering uncompromising flow, performance, and sound. Mandrel bending involves placing a mandrel inside the piping, before it is bent to shape. In comparison; cheaper press bending from other manufacturers squashes the tube as it is bent, reducing flow.


Stainless Steel

Tired of your mild steel exhaust systems rusting out after a year or less? Time to shop for a stainless steel system?
Significant differences exist between the metals that make one better for performance exhaust applications than the other. Let us explain

The corrosion resistance of your exhaust depends on the content of chromium and nickel found in the alloy. Ferrous stainless steel (high iron content) is used by many manufactures due to its medium strength, formability and very low cost.

Empire Performance uses corrosion resistant austenitic stainless steel for performance exhausts because of its strength and the fact it is highly resistant to rusting. Because of its low ferrous content, it can develop a golden colour when exposed to high heat over time. In fact, with Empire Performance piping, the ferrous metal content is so low that magnets won’t stick to it, making the comparison against inferior ferrous stainless steel very easy.

Put simply, Empire Performance stainless is the highest quality material used in the auto exhaust game when strength, corrosion resistance and performance are at the top of your list of priorities.

Empire Performance exhausts are exclusively constructed from high quality corrosion resistant stainless steel. Our Stainless steel is engineered with chromium and nickel content and proves to be resistant to oxidation, corrosion, and durability.

Together with a polished finish - it is the best choice for your car offering unrivaled corrosion resistance from exhaust emissions, moisture and salt exposure.


Bolt on Installation

All Empire Performance exhausts are designed to follow the same orientation and layout as the factory exhaust, making for easy bolt on installations. Our systems utilise the standard hanger locations, which means you don't have to use anything other than the factory rubbers.


Fitting Components

All Empire Performance exhaust systems include a fitting kit comprising of all required bolts, gaskets and clamps.


At Empire Performance, we understand you need peace of mind. All Empire Performance exhaust systems are covered by a confidence inspiring 2 year warranty.


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