Avensis Tuning

"Avensis avengers"

The Avensis is Toyotas larger family car. Build primarily with practicality and economy in mind.

However there is nothing stopping your from turning your Avensis into a track day car. Most Avensis owners in our forum just wanted a fast road car that is fun to drive.

With this in mind we suggest that handling mods are your first port of call. Fit adjustable coilovers all round that are slightly stiffer and lower than standard. We would go to a maximum drop of 35mm on most models. You risk rubbing on the arches and compromising your handling  if you go lower than this.

Top end power should be your overall aim on the Avensis with a nice fat peak torque band. As this is a large car you must pay careful attention to your braking and TorqueCars would strongly recommend you fit bigger disks and pads all round.

Tuning tips and articles

Engine tuning Transmission tuning Care care Intake & exhaust mods Improve handling Forums


Vented disks and high friction pads are best. Avoid the track day pads as these are only really effective when they get warm and this is not something that happens on the road.

Avensis make good sleepers if you debadge them and fit the most powerful engine you can find!

The 1.6 engines do not provide much of a return in terms of power and really struggle with so much car to move. So start with a bigger engine, either the 1.8 or the 2.0. Engine swaps are a good option if you have the 1.6. (Interestingly the 1.6 was not offered in the UK market!)

Best avensis modifications.

The following modifications are usually performed by our members, decide how far you want to go before you begin.

Getting the right mods for your planned usage of the car is vital. Stage 3 (competition) mods just don't work well on the road.

Please watch our video which covers the 5 principles of tuning your car. Be sure to keep up with our latest YouTube content and subscribe.

Best Engine Mods for your car

  1. Engine Tunes - engine tuning/remapping provides the most advantage in terms of cost savings,  aftermarket ECUs, and piggyback ECUs are all alternatives.
  2. Fast road cams are one of the most significant mechanical changes, but they must be installed by someone who knows what they're doing and they are not always easy to source but you might find a local firm to regrind a stock camshaft.
  3. Intake and Exhaust - Note that on their own these mods will NOT ADD POWER in most cases, but they can help enhance power after other mods by removing the restriction.
  4. Upgrades to turbochargers and superchargers - forced induction is the most efficient approach to increase air supply, allowing you to burn more fuel and make more power. It is one of the most costly upgrades but provides the best gains.
  5. Head work - The goals of porting and flowing the head are to get air flowing into the engine while removing flow restrictions and turbulence.
  6. Typical stage 1 mods often include: Exhaust, Panel air filter, Engine Tunes/Remapping, lighter flywheel

    Typical stage 2 mods often include: Fast road cam, ported and polished head, fuel injector & fuel pump upgrades,

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

    Fast road cams offer one of the biggest performance gains as far as a bolt on part goes for the Avensis. You might also get the head flowed and ported and larger valves if you are serious about power. Don't forget to uprate the fuelling when you are increasing the power - it makes the car use more fuel as power is fuel+air burnt.


    A fuel pressure boost valve can make the car more responsive and respond better although it will not increase the power output. Uprating the injectors is another beneficial modification and will deliver sufficient fuel. A fuel pump will only deliver a finite amount of fuel, so you may need to uprate this if your injectors are demanding more fuel.

    Intake and Exhaust Modifications.

    The next area for modification is the intake and exhaust. Please ignore induction kits, the standard Avensis airbox is more than adequate for most tuning projects, instead for Avensis engines you should go with a sports panel air filter. Sports exhausts balance the flow of air through the engine. But if your exhaust is too large, ie it is over 2.0 inches bore, you will lose a lot of the flow rate and lose power on most engines.

    Fit an uprated clutch to avoid power losses through the transmission. Turbo Diesel engines are just begging to be remapped. You will see big power gains on most turbo engined cars including diesels making a tune/remap one of the most cost effective modifications.

    The largest power gains for the 1.8 and 2.0 petrol engines usually involve the addition of forced induction. In general turbos are harder to add than supercharger as turbos boost in exponential proportion to increasing engine speed and this can make mapping difficult. The nice steady boost to rpm characteristics of the supercharger make them easier to map and setup. Decreasing the engines compression ratio will allow you to add forced induction, water injection may also help prevent detonation along with the use of high octane fuel.

    Handling/Suspension upgrades

    Many Avensis owners uprate the handling of their cars with suspension upgrades as a priority, this will certainly increase your enjoyment of the car.

    If you set the toe out to around 1.5 degrees on the front, and add a little negative camber then cornering will radically improve.

    Drop the car optimally somewhere in the region of 25mm - 41 mm. and fit motorsport grade stiffer dampers, bigger drops will need other modifications in most instances.

    A nice wide torque band and sweet spot of peak power at one third of your RPM range is optimum.

    Spending a little money on the top engine and handling mods should transform your car into a very credible performer.

    Smaller engines do not provide much of a return in terms of power so start with a bigger engine. Engine swaps are a good option if you have a small engine size.

    Toyota Avensis Wheel modifications.

    The benefits of alloy wheels include a lower unsprung weight and more efficient brake cooling. It is worth noting that although they can look cool on the Avensis Big alloy wheels will actually decrease your performance. The larger you go the lower your acceleration will be - this is due to the change in your effective final drive ratio. Aim to keep the overall rolling diameter of the wheel the same as supplied from the factory. In all cases we do not recommend going above 17 inches.

    Make sure you get some nice grippy tyres for your Avensis. Assymetric and direction tread patterns are rated by our members so be sure to drop into our forum and find the thread on tyres.

    If you would like to know more, or just get some friendly advice on Tuning your car please join us in our car forums where you can discuss Avensis options in more detail with our Avensis owners. It would also be worth reading our unbiased Toyota tuning articles to get a full grasp of the benefits and drawbacks of each modification.

    Please Check out my YouTube channel, we're regularly adding new content...

    PLEASE HELP: I NEED YOUR DONATIONS TO COVER THE COSTS OF RUNNING THIS SITE AND KEEP IT RUNNING. I do not charge you to access this website and it saves most TorqueCars readers $100's each year - but we are NON PROFIT and not even covering our costs. To keep us running PLEASE Donate here

    If you liked this page please share it with your friends, drop a link to it in your favourite forum or use the bookmarking options to save it to your social media profile.

    Feedback - What do You Think?

    Please use our forums if you wish to ask a tuning question, and please note we do not sell parts or services, we are just an online magazine.

    Help us improve, leave a suggestion or tip

    Your Constructive comments on this article, I really want to improve this article with your help and suggestions.

    Please watch this video and subscribe to my YouTube channel.

    2 Responses to “Tuning the Toyota Avensis”

    1. steve says:

      How would i go about tuning a 2.2 D4D? Its got 175bhp standard with roughly 295lbft of torque

    2. David Reilly says:

      Awesome advice, just bought an Avensis as a family car but still have the petrol head inside me. Was just gonna go for an induction kit and exhaust so I could still hear the sound. But after reading this article…..ar lass is gonna have a shock soon lol

Member Benefits

Join our forum today and benefit from over 300,000 posts on tuning styling and friendly car banter.

You will also have full access to the modifed car gallery, project car updates and exclusive member only areas.

(All car owners of all ages and from all countries are welcome).

BMW 335i - 2021 COTY

We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide

Tips for N54 Tuning

Tips for N55 Tuning
Tips for B58 Tuning

Popular articles

Diesel Tuning
ECU Remaps
double de clutch
Induction Kits
Customize a car
Chip tuning
Modded Car insurance
Insuring Track days
Remapping Diesels
Calculate MPG
DPF cleaning
Tuning Stages

How To Clear A Blocked Dpf

How to clean a DPF

Fwd Rwd Conversion

Converting a FWD to a RWD

Matt Paint

How to get a matt or silk paint finish.

Body Kits

Car bodykits. Side skirts, sills, bumpers and wide body kits.

Tuning Mpg

Tuning for improved MPG

2006 Car News

Review of car news during 2006

MPG Calculator

MPG calculator UK miles per Gallon – calculate MPG