We have temporarily put all tuning system/ECU sales on hold while we implement policies to comply with new EPA rules and enforcement actions. Restricted sales on ECU's and tuning systems will resume soon with the new procedures to be sure we comply with regulations.

KTuner 2005-2006 Acura RSX Base Model Reflash - HA Motorsports
KTuner 2005-2006 Acura RSX Base Model Reflash - HA Motorsports

KTuner 2005-2006 Acura RSX Base Model Reflash

Regular price
Sale price
Unit price
Shipping calculated at checkout.

The KTuner Reflash for 05-06 RSX base model offers new life to the RSX engine with minimal cost. Available for both manual and automatic transmission models, gains of 10-12 wheel horsepower from 2000-3700 rpm and an increase of another 3-4 wheel horsepower above 3700 rpm are achieved even on a completely stock engine. The result is a much more pleasurable driving experience with plenty of torque for easy passing. Even further gains can be seen with basic intake and exhaust upgrades.  See the dyno chart of a stock '06 RSX base model with automatic transmission with only an intake installed. Notice the huge power increase in the low-mid power range from before and after the KTuner Reflash

How does the Reflash process work?

  1. Add the reflash service to your online shopping cart, then complete the checkout process. You will select your RETURN shipping option during checkout.
  2. Print out your order confirmation at the end of the checkout process. Please include this with your package when shipping to us.
  3. Remove your ECU from your vehicle and pack securely in a box to ship to us along with your order confirmation printout. We do NOT need your ignition keys or immobilizer. Please ship ONLY your ECU and printout.
  4. Upon receiving your ECU, we will complete the KTuner reflash of your choice and retest your ECU for proper operation.
  5. Your ECU will be shipped back to you within 1-2 business days. We will email shipping notification and tracking information at this time so that you can know when to expect your ECU.
  6. When you receive your ECU back from the reflash, simply plug into your vehicle and enjoy!


Ask a Question
  • I have a 2006 acura rsx base automatic with a aem intake and skunk2 exhaust what ktune should I get the 250 or 450 one Can I use my stock ecu and will I pass smog

    The reflash for $250 will make an improvement for you over the factory programming, but that will be all you'd be able to do with the reflash.  With the KTuner End-User system you can upload the reflash file yourself, then tune or make any other programming changes, datalog, etc. all yourself using a laptop and the KTuner software.  This would be the best option so that the car can be tuned for the exhaust and any other future upgrades/changes.

  • Can i run a raceheader with this reflash?

    This reflash is for a stock engine, or stock engine with an intake upgrade.  It is not designed/programmed to account for a race header.  If you have a race header or other mods, we'd recommend going with the KTuner End-User and a dyno tune.

Net Orders Checkout

Item Price Qty Total
Subtotal $0.00

Shipping Address

Shipping Methods