Performance Tuner Experience
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6th Gear
Joined: Nov 2020
Posts: 6
Likes: 0
From: OR
Performance Tuner Experience
I own a 2018 LX 570 that we purchased in February with 90k miles. Now, 14k miles later and a cross country trip in the rear view mirror I'm interested in adding a performance tuner. When I owned a 2009 GMC Sierra with the 6.9L supercharged diesel I had great success with a tuner, and I'm wondering if that could happen with the Lexus, but wanted to hear from others who had added one to their LC or LX. On our cross country trip we pulled a Casita travel trailer and our mileage was around 12mpg with the worst at 9mpg and the best at 15mpg. Power was just okay, not the rocket ship I expected with a 5.7 liter, 32 valve, V8. Non-towing mileage on the road isn't bad, ranging to 20+, but as soon as you mix some around town it drops quickly. As you know the LX 570 comes with a factory tuner that has 3 positions, ECO, Normal, Sport. I'm just wondering if there's anything beyond that in the aftermarket and what actual experience owners have had.
Thanks,
Thanks,
Advanced
Joined: Aug 2016
Posts: 527
Likes: 118
From: Big Sky Country
I have a tune on mine. It helps but isn't going to take it to super charger level.
I used Big Turtle Tuning in Northern Idaho.
They are part of the Overland Taylor Tuning Network. https://overlandtailor.com/
They have several levels of tuning and you can test them out to figure out which works better for you
I used Big Turtle Tuning in Northern Idaho.
They are part of the Overland Taylor Tuning Network. https://overlandtailor.com/
They have several levels of tuning and you can test them out to figure out which works better for you
Driver School Candidate
Joined: Jul 2025
Posts: 19
Likes: 6
From: Florida
I have a tune on mine. It helps but isn't going to take it to super charger level.
I used Big Turtle Tuning in Northern Idaho.
They are part of the Overland Taylor Tuning Network. https://overlandtailor.com/
They have several levels of tuning and you can test them out to figure out which works better for you
I used Big Turtle Tuning in Northern Idaho.
They are part of the Overland Taylor Tuning Network. https://overlandtailor.com/
They have several levels of tuning and you can test them out to figure out which works better for you
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