I recently acquired a used jenvey itb under $500 and out of interest had it installed a couple weeks back in place of the skunk2 pro intake mani with a 70mm tb. Other mod was having the muffler removed and exit through the right ride with a blox mini race muffler to try and reduce the restriction a little by eliminating extra bends. Prior to these changes, I was roughly in the 180+ whp / 145+ lb/f range. Had my car retuned and I am very pleased with the results. I gained massive usable torque over a wider rev range and the response is indeed as good as they say. Test driving it was very nice yesterday.
Wiseco 11.3:1 pistons
Supertech flat face valves
Jenvey 45mm twin body ITB
PLM Toda style header
Straight through resonator to a fart can Blox Mini Race Muffler exiting on the right side to reduce bends.
EF8 tranny with LSD
In the near future I will have to find a better exhaust solution to get rid of the noise but for the time being I will rock this exhaust setup until I get tired of it as I don't drive this car daily anymore.
Next year, planned upgrades are:
Better header for more top end hp
Custom exhaust 2.5" to 2.75"(from the bends) to exit with a civilised high flow muffler to reduce noise levels.
Hydraulic tranny with clutch plate lsd
Some track days in 2018 hopefully.
Stay tuned. I wanna upload some videos.