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

To Suit Mazda BT50 2006-2011
IEXHAUST014 BT50 2006-2011 Auto Exhaust System
IEXHAUST015 BT50 2006-2011 Manual Exhaust System
To Suit Mazda BT50 2011-6/2020
IEXHAUST008 BT50 2011+ 3.2L Exhaust System
IEXHAUST020 BT50 2012+ 2.2L Exhaust System
IEX039 Exhaust System to suit Mazda BT50 2016+
To Suit Mitsubishi Triton MN 2009-2015
IEXHAUST019 Auto Exhaust System to suit Mitsubishi Triton MN 2009-2015 2.5L
IEXHAUST018 Manual Exhaust System to suit Mitsubishi Triton MN 2009-2015 2.5L
To Suit Mitsubishi Triton MQ 2015-10/2018
IEX067 Exhaust System to suit Mitsubishi Triton MQ/MR 2.4L 2015+
To Suit Nissan Navara D22
IEXHAUST011 Navara D22 2002+ Exhaust System
To Suit Nissan Navara D40
IEXHAUST012 Navara D40 2005+ Exhaust System
To Suit Nissan Navara NP300
IEX048 Exhaust System to suit Nissan NP300 2.3L
To Suit Nissan Patrol GU S1-3 Wagon 1998-2004
IEXHAUST006 Patrol GU Exhaust System