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This reflash is for the K20A3 Civic Si with the Jackson Racing Supercharger.
Also see JRSC Race Install
Applications
- K20A3 Civic Si with JRSC race upgrade. (PNF A01-A13)
We do not recommend the use of nitrous with this reflash.
For these applications use the K-Pro.
Pricing
Hondata does not sell direct - all sales and payment must be conducted
through Hondata dealers. The
upgrade
information form must be sent with your ECU.
Details
- 10-30 ft pounds torque gain over base kit
- 45 peak hp gain (85 hp over stock)
Click picture to enlarge.

Red line
- 2002 Civic Si with Base kit as supplied by Jackson Racing
- JR headers
- Intake
- Exhaust
- 4.4 pulley
- TFI box.
Yellow line
- 2004 Civic Si
- 4.0 pulley.
- 440 injectors
- Headers and intake and exhaust
- Hondata ECU upgrade
For comparison here is a stock Civic Si as compared to a JRSC + intake + headers. Click picture to enlarge

Tuning notes
Had we revved the car higher we could have hit 230 hp. Very torquey and easy to drive.
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