Apex'i Super Ignition Timing Converter (S-ITC)

From Apex'i: "The Super ITC adjusts ignition timing by +/- 15% by modifying the crank/cam angle signal on certain vehicles. The timing curve is adjusted by setting the timing at 5 different points along the RPM range and the values between are interpolated by the ITC from those 5 points. The Super ITC used in conjunction with the Super AFC fuel controller creates a new dimension of tuning with piggyback computers. Apexi recommends having the Super ITC installed and tuned by authorized shops."

This is a barely used, Super ITC, or S-ITC, from Apex'i.

These units are apparently somewhat rare now, as Apex'i is no longer listing them on their 2002/2003 price list.

There are various pictures here, but all show the unit exactly the same as you will receive it. The unit is in fully functional condition, and was recently removed from a 1997 Eagle Talon TSi AWD (Mitsu Turbo Eclipse). This is the only car it was ever run in, since bought new, by myself, and professionally installed.

See the bottom, for a partial list of cars it will work with...

The S-ITC works exactly as described by Apex'i (above), in that it fools the ECU timing signals from the engine, and thus, encourages the ECU to advance or retard the actual timing, as you require, and ask it to, for each RPM band.

This is very valuable when you're trying to get the maximum HP out of your vehicle, and is extremely simple to use.

From a looks perspective, it's a smart looking, compact unit, that lights up when on (as above) and changes lighting across the dials, as the RPMs fluctuate.


Is it safe to use?

1. You should have it professionally installed, but I do include all manuals (including English instructions), and it's only a handful of wires to connect. You could do it on your own, but I wouldn't recommend it, for safety sake.

2. In the case of many cars, (my 1997 Talon included), the ECU still monitors knock in the engine, and can retard the timing, to keep the engine safe from any damage, no matter what the S-ITC is set to. Check with your specific vehicle manufacturer.

3. If you're going to install it yourself, I recommend soldering the wires in place, rather than using the included crimp connectors... it's just a better way to do it.

Package includes:

  • Apex'i Super-ITC
  • Wiring harness
  • Original Box
  • Japanese Manuals
  • the rare ENGLISH manuals! (a clean photocopy)


I'll ship just about anywhere that a package can be signed for. After some recent problems I had purchasing from a really lousy eBay'er, I have learned that we must always get a signature on delivery.

After the auction ends, the buyer may select their preferred shipping method, urgency, etc, and will then be responsible for any insured shipping charges.

All shipments will be insured, to protect both parties in the case of loss or damage.


PayPal or money order are acceptable. PayPal is the quickest, of course.


I warranty that it is 100% operational at the instant this ad has been placed. And that it was removed from the car with utmost care, and has been carefully handled and packaged for proper shipment.

If you do not use a professional installer when you install it, then I cannot warranty you against any damage you may do, by mis-connecting the device to your vehicle.

So for gosh sake, be careful, if you're going to do it yourself. Read all instructions!

I have an excellent PayPal and eBay record, and a good standing in the DSM community. I stand by my reputation, and am happy to provide personal contact info, phone numbers, etc, upon request.

Long page, I know, almost done.

Lastly I have a partial list of cars that it will work with, here with me. Theoretically, it should work on just about any car, but these are the models that are included with ECU wiring diagrams in the English manuals that I have. The manual was printed in 1999 or 2000, so it doesn't include some of the newest cars, but again, a professional installer would be able to help you here with the details.

The list includes almost every vehicle from Nissan, Toyota, Mitsubishi, Mazda, Subaru and Honda.

So, if you have a specific car in mind, please email me and I will be able to quickly tell you if it's in the diagrams section. (the list is too long to type them all in)

Any questions? Don't hesitate to ask.
The S-ITC has served me very well, and I am only replacing it in favour of a standalone computer system that replaces the S-ITC, my S-AFC and a few other devices.

Thanks, and HAPPY BIDDING!