Chiptuning Honda Accord VIII (2008–2013)
11 engines · +18 to +51 hp
Honda Accord VIII: 11 engines — 9 petrol and 2 diesel. The gain is +18 to +51 hp, with up to +101 Nm more torque. GAN GTL from 249 EUR, GAN GT from 399 EUR. GAN GA+ from 189 EUR.
All Honda Accord VIII engines: exact gains
Standard output, output with GAN, the gain and the price for each box. Diesel and petrol engines are listed separately.
| Engine | STOCK → with GAN | Gain | Tuning boxes and prices | |
|---|---|---|---|---|
| Diesel · 2 engines | ||||
| 2.2 i-DTEC179 hp / 380 Nm | +51 hp+101 Nm |
GTL — 249 EUR · 222 hp GT — 399 EUR · 230 hp |
Select → | |
| 2.2 i-DTEC150 hp / 350 Nm | +43 hp+95 Nm |
GTL — 249 EUR · 187 hp GT — 399 EUR · 193 hp |
Select → | |
| Petrol · 9 engines | ||||
| 2.4i200 hp / 234 Nm | +24 hp+28 Nm |
GA — 199 EUR · 224 hp GA+ — 199 EUR · 224 hp |
Select → | |
| 2.4i201 hp / 230 Nm | +24 hp+28 Nm |
GA — 199 EUR · 225 hp GA+ — 199 EUR · 225 hp |
Select → | |
| 2.4i190 hp / 223 Nm | +23 hp+27 Nm |
GA — 189 EUR · 213 hp GA+ — 189 EUR · 213 hp |
Select → | |
| 3.5i271 hp / 340 Nm | +22 hp+27 Nm |
GA — 199 EUR · 293 hp GA+ — 199 EUR · 293 hp |
Select → | |
| 2.4i175 hp / 225 Nm | +21 hp+27 Nm |
GA — 189 EUR · 196 hp GA+ — 189 EUR · 196 hp |
Select → | |
| 2.4i177 hp / 220 Nm | +21 hp+26 Nm |
GA — 189 EUR · 198 hp GA+ — 189 EUR · 198 hp |
Select → | |
| 3.5i268 hp / 339 Nm | +21 hp+27 Nm |
GA — 199 EUR · 289 hp GA+ — 199 EUR · 289 hp |
Select → | |
| 2.0i155 hp / 190 Nm | +19 hp+23 Nm |
GA — 189 EUR · 174 hp GA+ — 189 EUR · 174 hp |
Select → | |
| 2.0i150 hp / 193 Nm | +18 hp+23 Nm |
GA — 189 EUR · 168 hp GA+ — 189 EUR · 168 hp |
Select → | |
Each engine has its own tuning box: GAN GT / GTL or GAN GA / GA+. Prices are per box and include the current discount.
Not sure which engine you have?
The badge alone is not enough: in this generation, the same engine designation came in different power outputs, each with its own calibration. Check the power output in your registration document and find the matching row.
Same badge, different factory power outputs in this generation:
Honda Accord VIII remap: what changes
The GAN box plugs in between the sensors and the engine control unit (ECU) and adjusts their signals, while a flash remap rewrites the ECU itself. Your manufacturer’s warranty is preserved: the ECU software is never changed, and the box can be removed at any time.
- Bluetoothchange modes from your phone
- 18 mapsfine-tuning for your engine
- 15 minutesfitted to the factory connectors
- IP67water and dust protection
- +51 hpbest in this generation
2.2 i-DTEC 179 hp → 230 hp. The other engines gain at least +18 hp; check the table for each one.
- +101 Nmfor diesels
Diesels gain mostly torque: +95 to +101 Nm, which helps with overtaking and towing.
- up to +12%with the GAN GA+ on naturally aspirated engines
For 9 naturally aspirated engines: GAN GA / GAN GA+ tuning boxes; check the table for each engine’s figure.
- 50 daystest drive
Feel the difference or get your money back, excluding delivery costs.
What makes the Honda Accord VIII special
Honda Accord Mk8 remap: the sporty version is a diesel
The Accord VIII's largest catalogue gain is a diesel's: 51 hp, not a petrol figure. The Type S, on the CU saloon and CW Tourer, has the 2.2 i-DTEC N22B2 at 180 hp and 380 Nm, while the base engine makes 150 hp and 350 Nm. The catalogue lists the Type S at 179 hp, and the GAN GT adds 51 hp and 101 Nm to it. The standard diesel takes the GAN GT as well and gains 43 hp and 95 Nm.
In Britain the car is the Mk8 Accord in Saloon or Tourer form, and the badge to look for is the 2.2 i-DTEC, with Type S as the stronger diesel. Both diesels carried on after the 2011 facelift, and European production of the Accord ended in 2015. The first cars, built from May 2008, are covered too.
The Accord VIII petrols
The petrols are the 2.0 i-VTEC with 155 hp and 190 Nm and the 2.4 i-VTEC, which makes 201 hp and 230 Nm with the manual gearbox. Both are naturally aspirated, which makes them GAN GA+ engines. On a petrol Accord the gain is therefore much smaller than on the Type S diesel.
UK reviewers also keep the two families apart: the 2.0 and 2.4 i-VTEC are naturally aspirated, the 2.2 i-DTEC turbocharged. The Tourer estate has had the same engines throughout.
Honda Accord VIII remap: common questions
Accord 2.2 i-DTEC Type S remap: how much more power does the 180 hp engine get?
The catalogue gives the Type S 179 hp and 380 Nm, rising to 230 hp and 481 Nm with the GAN GT. Read these as the stated figures for the engine type, not as a dyno reading of your own car.
How much do the 2.0 and 2.4 i-VTEC Accord VIII gain from a tuning box?
The 2.0 i-VTEC gains 19 hp and 23 Nm, and the 201 hp 2.4 i-VTEC gains 24 hp and 28 Nm. The GAN GA+ is rated at up to 12% more power, and both gains sit at that level.
What should a 2.2 i-DTEC have checked before a tuning box goes on?
Look at the diesel particulate filter (DPF) first, as short trips clog it, then at the flexible EGR bypass hose, which can crack. The box adds power and does neither of those jobs, so a clogged filter or a cracked hose still needs a garage.
Does a GAN tuning box affect my car insurance?
Tell them. A tuning box raises the output, and in Britain that is a declarable modification like any other performance change. Policies differ, so a quick call to your insurer before fitting is the safe route; the figures they will ask for are the stock and GAN outputs listed here.
Is a tuning module the same as a Stage 1 remap?
Not quite. Stage 1 usually means an ECU remap 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.