Performance Chip Tuning Honda Stepwgn
10 engines · +17 to +43 hp
Honda Stepwgn: 10 engines — 10 gas. Gains run from +17 to +43 hp, with up to +61 Nm more torque. GAN GTL from 249 EUR, GAN GT from 399 EUR. GAN GA+ from 189 EUR.
All Honda Stepwgn engines: exact gains
STOCK output, output with GAN, gain and price for each module.
| Engine | STOCK → with GAN | Gain | Tuners and prices | |
|---|---|---|---|---|
| Gasoline · 10 engines | ||||
| 1.5T150 hp / 203 Nm | +43 hp+61 Nm |
GTL — 249 EUR · 187 hp GT — 399 EUR · 193 hp |
Select → | |
| Spada 2.0h215 hp / 315 Nm | +26 hp+38 Nm |
GA — 199 EUR · 241 hp GA+ — 199 EUR · 241 hp |
Select → | |
| Spada 2.0h184 hp / 315 Nm | +22 hp+38 Nm |
GA — 189 EUR · 206 hp GA+ — 189 EUR · 206 hp |
Select → | |
| 2.0i155 hp / 188 Nm | +19 hp+23 Nm |
GA — 189 EUR · 174 hp GA+ — 189 EUR · 174 hp |
Select → | |
| 2.0i160 hp / 191 Nm | +19 hp+23 Nm |
GA — 189 EUR · 179 hp GA+ — 189 EUR · 179 hp |
Select → | |
| Spada 2.4i162 hp / 220 Nm | +19 hp+26 Nm |
GA — 189 EUR · 181 hp GA+ — 189 EUR · 181 hp |
Select → | |
| Spada 2.4i162 hp / 218 Nm | +19 hp+26 Nm |
GA — 189 EUR · 181 hp GA+ — 189 EUR · 181 hp |
Select → | |
| 2.0i150 hp / 193 Nm | +18 hp+23 Nm |
GA — 189 EUR · 168 hp GA+ — 189 EUR · 168 hp |
Select → | |
| Spada 2.0i150 hp / 193 Nm | +18 hp+23 Nm |
GA — 189 EUR · 168 hp GA+ — 189 EUR · 168 hp |
Select → | |
| Spada 2.0i145 hp / 315 Nm | +17 hp+38 Nm |
GA — 189 EUR · 162 hp GA+ — 189 EUR · 162 hp |
Select → | |
Each engine gets its own performance chip: GAN GT / GTL or GAN GA / GA+. Prices are per performance chip and include the current discount.
Not sure which engine you have?
The badge alone isn’t enough: in this generation, the same engine came with different horsepower ratings, each with its own calibration. Check the horsepower in your owner’s manual or vehicle documents and find the matching row.
Same badge, different factory power outputs in this generation:
Honda Stepwgn tune: what changes
The module plugs in between the sensors and the engine control unit (ECU) and adjusts their signals. It never rewrites your ECU software: your factory warranty is preserved, and the module can be removed at any time.
- Bluetoothswitch modes from your phone
- 18 mapsto fine-tune your engine

- 15 minutesplug-and-play install
- IP67water and dust protection
- +43 hpbest in this generation
1.5T 150 hp → 193 hp. The other engines gain +17 hp and up; check the table for each one.
- up to +12%with the GAN GA+ on naturally aspirated engines
For 9 naturally aspirated engines: the GAN GA / GAN GA+ tuners; check the table for each engine’s numbers.
- GAN APPpower control via smartphone
Switch between SPORT, DYNAMIC, ECO and STOCK in the GAN app.
- 50 daystest drive
Enhanced performance or your money back, excluding shipping costs.
What makes the Honda Stepwgn special
Honda Stepwgn tune: a Honda built for another market
Honda never sold the Stepwgn, an eight-seat people carrier, in the U.S.; every one here is an imported used vehicle. Honda did not sell it in Europe either, and since 2015 its exports have gone only to countries in Asia. The generations are coded RF (1996–2005), RG (2005–2009), RK (2009–2015) and RP (from 2015), so a Stepwgn tuner has to match the engines of that home market.
The RP generation splits in two: RP1 to RP5 until 2022, RP6 to RP8 after that. Europe's Honda people carriers were the Stream and the FR-V, and in 2017 a Spanish magazine wrote that Europe lacked a van like the Stepwgn. The RP's 1.5 turbo (150 hp, 203 Nm) takes the GAN GT and gains 43 hp and 61 Nm.
Naturally aspirated 2.0 versions
Three versions of the naturally aspirated 2.0 i-VTEC are listed, at 150, 155 and 160 hp. All take the GAN GA+ and gain 18, 19 and 19 hp, plus 23 Nm each. Spada is a trim line of the model, and the Spada 2.0 at 150 hp matches the plain 2.0 at 150 hp figure for figure. Spada is a Japanese-market trim, not a U.S. Honda trim. Across the generations, the naturally aspirated engines are the B20B, K20A, K24A and R20A.
Buying an imported Stepwgn
If you drive it daily, the 2.0 i-VTEC delivers 150 to 155 hp. An RK import (2009 to 2015) came only with the 2.0 at 150 hp, so the 150 hp version is the one to pick.
Honda Stepwgn tuning FAQ
How much does a performance chip add to the Stepwgn 1.5 turbo?
For a Stepwgn 1.5 turbo tune, the GAN GT takes 150 hp and 203 Nm to 193 hp and 264 Nm. Expect up to 30% more power from the GAN GT on a turbo gas engine like this; the figures are the stated gains for this engine type, not a dyno reading of your car.
Is the Honda StepWagon the same car as the Stepwgn?
Yes: Stepwgn, Step WGN and StepWagon all name one model, so the figures on this page also apply to a Honda Stepwagon.
What does the GAN GA+ do for the 2.0 i-VTEC?
With the GAN GA+ you get up to 12% more power, so a naturally aspirated Stepwgn gains less than the turbo version. The ECU software is never changed and the module comes off at any time, so your factory warranty is preserved.
Is a tuning module the same as a Stage 1 tune?
Not quite. Stage 1 usually means an ECU flash tune without replacing any parts. The tuning module also works without replacing parts, but it does not change the ECU software: it adjusts the sensor signals, comes off in about a minute, and the OFF button in the app restores the factory settings.