Big Bore Exhaust Tip


The Ironman 4×4 BigBore Exhaust System is designed with Australian four wheel driving and touring in mind. Our improved design allows the engine to breathe more efficiently increasing torque and pulling power.

Each system is designed to get the maximum performance and efficiency from the engine, whilst keeping the noise down and allowing for maximum ground clearance.

When developing a new exhaust system our engineers vigorously road test and dyno a standard vehicle to check boost and exhaust temperature. The vehicle is also tested for the standard power and torque output.

From this information, we then engineer and tailor an exhaust system to suit a vehicle’s specific requirements, one that provides optimum power, torque and efficiency improvements over a standard factory exhaust.

Australian Made, Designed, & Engineered

  • Mandrel Bent Exhaust Systems.
  • Includes Dump pipe*
  • Diesel catalytic convertors
  • 10mm Flange plates
  • Stainless steel flex bellows
  • Includes Resonator
  • Complete mounting kit including hardware, flange gaskets and mounting rubbers
  • 1.6 Wall aluminised steel
  • Set up and designed for towing
  • Easy to fit.

Exhaust Systems Products

Nissan Navara D22
IEXHAUST011 Navara D22 Exhaust System
Nissan Navara D40
IEXHAUST012 Navara D40 Exhaust System
Nissan Patrol GU S1-3 Wagon 1998-2004
IEXHAUST006 Patrol GU Exhaust System
Nissan Patrol GU S4+ Wagon 2005+
IEXHAUST006 Patrol GU Exhaust System
Toyota Hilux 2005-2011
IEXHAUST005 Hilux 2005-2011 Exhaust System
Toyota Hilux 2011-2015
IEXHAUST005 Hilux 2011+ Exhaust System
Toyota Landcruiser 100 Series
IEXHAUST010 Landcruiser 100 Series Exhaust System
Toyota Landcruiser 200 Series 2008-2011
IEXHAUST003 Landcruiser 200 Series 2008-2011 Exhaust System
Toyota Landcruiser 200 Series 2012-2015
IEXHAUST003 Landcruiser 200 Series 2012+ Exhaust System
Toyota Landcruiser 76 Series 2007+
IEXHAUST002 Landcruiser 76 Series 2007+ Exhaust System
Toyota Landcruiser 78 Series 2007+
IEXHAUST009 Landcruiser 78 Series 2007+ Exhaust System
Toyota Landcruiser 79 Series 2007 - 9/2016
IEXHAUST001 Landcruiser 79 Series 2007+ Exhaust System