It’s well established throughout the 4WD community that large capacity, high flow mandrel bent exhausts are of great benefit to the modern 4x4. Increased torque over a wider RPM range result in a more flexible engine with improved economy.

Performance Exhausts

Why does it Work so well in Turbo Diesel:

The Law of Adiabatics – as a gas cools it expands, as the exhaust gases move away from combustion they are expanding at the greatest rate, as they are cooling at the greatest rate. The turbine spins earlier due to the greater space for the hot exhaust gases to expand into.

It’s the expansion of the gases that make the turbo spin, as they rush past the turbine into the greater space of the larger exhaust.

The earlier spinning leads to earlier boost pressure which leads to improved efficiency, hence improved economy and lower down torque.

Taipan Exhaust, King Brown, Advance, Pacemaker are all brands supplied and/or fitted by GO 4x4. The kits come with dump pipe, flex joint, hi-flow mandrel bends, mount to the original mounting points with a choice of muffler, straight through pipe or hotdog*.

They can be as quiet as the factory system or as noisy as a drag car. Please note, more noise doesn’t equate to greater flow.

The reason? Remember, diesel fuel detonates due to the compression of the air-fuel mixture on the compression stroke, it is the compression that lifts the temperature to ignition. If there is not enough ‘back pressure’, the upper cylinder temperatures reduce to the point where more compression energy is required to cause combustion. More energy is used from the other ‘firing’ cylinders to force the piston higher, hence energy is being absorbed, power output is reduced. Timing is also altered, reducing power output further.

For more low down torque for 4WDing, better towing and safer overtaking on-road, with improved economy, the hi-flow exhaust will make a noticeable difference, up to 15%. For more significant gains, refer to Custom ECU Re-mapping.

Summary

  • Available in Turbo Back and DPF back
  • Available in a variety of noise levels, straight pipe, hot-dog or hi-flow muffled
  • 304 Stainless with 3” Mandrel Bends
  • 10mm Thick flanges
  • Fix to OE mounting points
  • Supplied with gaskets and high tensile zinc plated nuts, bolts & washers
  • Manufactured in Australia and Imported
  • Experienced Technicians available for fitting
  • 3 Year Warranty – Unlimited Kms

We also have other Performance Exhaust components

Turbo Dump Pipes

Most modern 4WD vehicles are turbo diesel and have improved performance with replacement of the restricted OE dump pipe with a Hi-Flow performance dump pipe. Available in diameters matched to engine capacity and characteristics, in aluminiumised mild steel and stainless steel.

  • Manufactured in Australia
  • Kit of gasket with high tensile zinc plated nuts, bolts & washers
  • Experienced Technicians available for fitting
  • 3 Year Warranty – Unlimited Kms

Extractors

Available for Diesel and Gasoline engines.

  • Supplied with Manifold gasket
  • Manufactured in Australia
  • Experienced Technicians available for fitting
  • 3 Year Warranty – Unlimited Kms