These are the same EPROMs we include with our full ECU upgrades. If your ECU has already been upgraded or modified in the past and is already socketed, these can easily be installed by just swapping out the chip.
Features & changes to the program, compared to stock, include:
-Street Legal (90-94)
-No Adjustments needed
-Rev. Limiter Raised to 7200 RPM
-VTC Release point optimized
-Eliminates Top Speed Limiter and Boost Limiter at ECU level
-Throttle Response Code Optimized
-Fuel/Timing Maps rescaled to allow higher boost pressure
-Air/Fuel Ratios corrected for higher power levels
-Ignition Timing corrected for optimum torque
-Computer Controlled safety boost level maintained
Please note: If your ECU is stock, you will need to have it professionally socketed before you can install one of our EPROMs. We offer an option above to include the physical socket, but you will still need to have the stock EPROM chip desoldered and removed before the socket can be installed. Our Full ECU Upgrades take care of this step for you, allowing you to send in your ECU for us to socket + chip.
Our new Compatibility checking feature is still being updated and revised. If you have questions about vehicle fitment, please contact us.
My car is an auto to manual conversion and still runs the auto ECU. Should I select auto or manual in the options list?
Hey Justin, select for Manual
Hi I'm planning on doing the na to tt swap. I see you guy have an option for that. Now is that for putting the turbos on the na motor. Bevause that what I'm doing . Running the high compression motor. And if so can I use this eprom chip for the tuning of the car.
- James connor
Hi James, the option on this chip is for swapping a TT motor into an NA chassis. Unfortunately we do not have a chip that will support a boosted NA motor.
what is the maximum boost pressure you can run with this chip
We normally recommend 14psi on 91 octane, or 16psi on 93 octane.
based on 5 customer reviews
Very impressive how such a little tweak can make such big changes. The car ran smooth already before the chip, but especially the throttle response got so much better. Runs like new.
First off, it is an absolute pleasure to work with CZP for so many reasons.
Anyways, my Z was not passing CA smog, and this tune (along with some new plugs), and the car passed with FLYING colors. Not to mention the amazing throttle response, and overall improvement of the car running. Butt dyno felt a difference too! Absolutely best money I have spent in awhile!
Well after installing bigger wheels and tires i noticed some lost of power on my 94 300zx and now scince i have the ecu chip upgraded on it is back or better than before i think is worth the time and little money i have spent on the older ecu and chip.the best customer service and sale handling i give a thumbs up to the guys @ CZP thanks Nick.