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The best Mazda 6 tuning modifications

"I'm too Sixy for my car"

The Mazda 6 is a good attack on producing an executive car. The car is well thought out and has a good range of engine options and a good chassis design. However the 6 was not originally aimed a the performance market until in very recent times, and as a result they lack many of the interesting engine options available in other marques.

This shouldn't stop you as there is much you can do to improve your 6, you just have to pick your mods carefully and do them in the right order.

The drawbacks of the standard Mazda 6 is the lack of engine power and the soft suspension. Both of which can be easily addressed enabling the Mazda 6 tuner to build a good fun car.

Tuning tips and articles Engine tuning Transmission tuning Care care Intake & exhaust mods Improve handling Forums

Anything less than the 2.0 is a bit of a waste of time when it comes to tuning as the cost is quite high and the return in power is relatively low. You might look to the other Mazda engine options to source a suitable donor and do a 2.3 Turbo conversion from the 3 range. Alternatively take the 2.0 engine and get the head polished, ported and gas flowed. Then add a fast road cam matched to some larger valves (with a 3 or 5 angle valve job)and you already have a nippy rev happy car.

Engine modification Stages on the Mazda 6.

The following mods are usually carried out by our members, decide how far you want to go before you begin.

Stage 1 mods: Exhaust, Panel air filter, Remap, lighter flywheel

Stage 2 mods: Fast road cam, ported and polished head, fuel injector & fuel pump upgrades, 

Stage 3 mods: Engine balancing, forced induction (turbo/supercharger), Internal engine upgrades (pistons/head/valves), competition cam.

The Mazda 6 is aimed at the executive cruiser but there is no reason you can't turn it into a highway bruiser.

Get a good quality stainless steel sports exhaust with a sports catalyst and that will also free up the engines torque. If you replaced the paper air filter with a sports panel filter or an induction kit with a cold air feed you have a nicely increased Torque band across the mid to top rev range.

If you wanted to go a bit bonkers then you could look into forced induction with a supercharger being easier to add than a turbo. For best results you will need to lower the compression ratio or use water injection to avoid issues with detonation. If you wanted a forced induction option it would be better to source the older models 2.3 turbo engine and swap this in.

Looking at the handling we would suggest a drop of around 35-45 mm on some harder springs for the best handling. Also add an anti roll bar to keep the cars cornering grip. Some of our members who own the Mazda 6 have added larger alloy wheels but for the best performance stick with the standard size wheel or get a larger alloy and fit ultra low profile tyres to it. In any case we would prefer to stick to 16 or 17inch rims on the Mazda 6.

Remaps do not offer much of a gain on the NASP engines but when combined with other modifications it can really improve the acceleration and release the maximum power from all your other modifications.

A replacement aftermarket ECU seems to be the way to go on the Mazda 6 but join us in our Mazda forum to see what the latest recommended mods are. Tell us about your project and swap tips and ideas with our Mazda 6 tuners.

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One Response to “Tuning the Mazda 6”

  1. kevin applegarth says:

    Hi I’m having problems with my engine management light being always on, also being hesssitance on setting off. The car has for a sports cat and air filter. I would like to know if the sports open filter can damage the air flow meter. Thks kev

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