1989 Toyota 4 Runner 4WD

• RV Camshaft (EPN 261 "C" (Crawler) )
  

• LC Engineering "RACE Version" Exhaust Manifold (non-egr)
  
•  3" Stainless header back exhaust, 90 degrees total bends
• Iridium plugs, stock replacement

• Mobil 1 since rebuild

Please click on the graph for a very high resolution image. 

The dotted lines represent the stock Toyota plastic intake tract with a TrueFlow brand drop in panel filter.

The solid lines represent the 2.75" aluminum intake tube with a TrueFlow brand drop in panel filter. 

In the tests below, PURPLE/CYAN/YELLOW represent the stock intake, RED/GREEN/BLUE represent our aluminum intake.

Please click on the graph for a very high resolution image.