Future Fabrication

Future Fab Toyota 1JZGTE VVTi T4 Twin scroll Exhaust Manifold

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Future Fabrication 1JZGTE VVTI Twin scroll T4 Exhaust Manifold that works with 1JZ 240sx Swaps


  • MADE IN THE USA and Includes Life Time Warranty to original buyer
  • Thick walled Stainless Steel 1 1/4 Inch SCH40 Runners Fully Tig Welded/Back Purged
  • Option of Dual 38mm MV-S or Dual 44mm MV-R wastegate flanges
  • Option for Silver and Black Ceramic Coating
  • True Twin scroll T4 Design 


Twin scroll merge collector creates a turbulent free area for the exhaust gasses to enter the turbine housing in even pulses at high velocities and low pressure drops. The result is an increase in turbine efficiency by 7-8 percent (faster spool, quicker response) and result in fuel efficiency improvements as high as 5 percent.

Lead Time 3-4 Weeks. These manifolds are built to order in Arizona. All flanges, and all piping is sourced in the USA.


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