Performing "the Big 3" On A Lexus Is 220d...

[HHawk]

I want to perform a so-called "Big 3" on my Lexus for my custom car hifi installation (and 3 Kinetik Audio batteries).

Will it work on my Lexus IS 220d car? Any advice, recommendations?

I don't know if this will hurt my car or not, but people recommend on car hifi forums in the USA recommend to upgrade this.

What's the "Big 3" you might ask, well here is an explanation:

The "Big 3" is a very easy mod to your car's electrical system that will help it maintain higher voltages for more power hungry amplifiers. If you've ever measured your voltage drop when playing music with the volume to the max with your engine running, you'll see that instead of reading 14.4v or 13.8 (depending on car), your voltmeter will read 13v, 12v, or even lower!

More information on "The Big 3" can be found at the websites mentioned below:

- The Big 3 - link 1

- The Big 3 - link 2

- The Big 3 - link 3

Will my Lexus IS 220d benefit as well? Or is it dangerous for the ECU or something?

[DJ Wozza]

I can't see why the same priciple would be different for a Diesel IMO or do it any harm.

Just make sure the cable to the 'extra' batteries is thick enough to handle the current.

A quick chat with your local Lexus Service Manager/Head Mechanic would put your mind at rest.

[redz_UK]

wont harm at all as long as you do it right. you should use the sama cable on tb3 as on the amp wiring.