LC Model (2018-present)

Horsepower Increase for LC 500

Thread Tools
 
Search this Thread
 
Old 12-26-23, 12:20 PM
  #16  
NCLC500
5th Gear
 
NCLC500's Avatar
 
Join Date: Nov 2023
Location: North Carolina
Posts: 5
Likes: 0
Received 1 Like on 1 Post
Default Horsepower increase

I have a 2018 LC500, I purchased the module to have a remote on the exhaust to open or close at will. I ordered the one that was programmed open and you have to push the remote to close it. I do not ever need to change the exhaust as I love the sound so much, and it does seem to have a better response all the time. Just fyi....
Old 12-27-23, 06:20 PM
  #17  
fodalo
Instructor
 
fodalo's Avatar
 
Join Date: Jan 2021
Location: NH
Posts: 796
Received 333 Likes on 249 Posts
Default

NCLC500 can you send the model and mfg on the remote module, Thank you. Sound and response is better?
Old 12-27-23, 06:31 PM
  #18  
asong1
Intermediate
 
asong1's Avatar
 
Join Date: May 2023
Location: VA
Posts: 339
Received 116 Likes on 80 Posts
Default

Originally Posted by fodalo
NCLC500 can you send the model and mfg on the remote module, Thank you. Sound and response is better?
Here you go. https://www.etsy.com/listing/1067743...search_click=1

Make sure yours is not a 24 model. On 24 models, this doesn't work yet becuase apparantly Lexus has relocated or removed the connectors in the trunk for this to work.
Old 12-27-23, 09:13 PM
  #19  
Enzo954
Pit Crew
 
Enzo954's Avatar
 
Join Date: Jun 2022
Location: Florida
Posts: 245
Received 109 Likes on 61 Posts
Default

I bought the module and I love it. To be honest I just keep the valves open 24/7 now so there's no real need to buy the module if you plan on keeping them open all the time. You can just disconnect the wiring that controls the valves and call it a day. I guess it is nice to have the remote if you want to close them or have the car control them as normal. There are 3 settings...open, closed and oem car controls the valves.
Old 12-28-23, 07:44 AM
  #20  
asong1
Intermediate
 
asong1's Avatar
 
Join Date: May 2023
Location: VA
Posts: 339
Received 116 Likes on 80 Posts
Default

I believe the unit has the following modes (set by the dip switches on the main unit).:

1. Alway On
2. Always Off
3. Remember Last Settings
4. Stock (press and hold the remote for 2 seconds) - not sure about this, but I saw this online somewhere.

Once these switches are set, you use the remote to override.

If they don't make one for the 24 models soon, I may just do a valved cut-out install from a quality maker. I love the stock exactly the way it is. I have a straight-piped full titanium exhaust on my Porsche, and it can get really loud sometimes even with the valves closed. I love the idea of being able to open it up fully and get right back to stock settings when on a freeways. But before I go this route, I need to see some dyno results. I hear you lose a lot of power when the cut-out valves are closed due to the airflow turbulence.

Last edited by asong1; 12-28-23 at 07:50 AM.
The following users liked this post:
fodalo (12-28-23)
Old 12-28-23, 12:50 PM
  #21  
fodalo
Instructor
 
fodalo's Avatar
 
Join Date: Jan 2021
Location: NH
Posts: 796
Received 333 Likes on 249 Posts
Default

asong did u install? Difficult?
Old 12-28-23, 05:06 PM
  #22  
asong1
Intermediate
 
asong1's Avatar
 
Join Date: May 2023
Location: VA
Posts: 339
Received 116 Likes on 80 Posts
Default

My brother attempted to install it on my LC as a Christmas present. That's how I learned about it. It's very simple, but we found out that it does NOT work on the 2024 models. All other models are fine. Here is is the video. Basically just intercepts 2 plugs in the trunk and you're done. ONLY on the 2024 models, the 2 aforemetioned plugs are not there. Lexus has either changed the wiring on the 2024, or relocate them to where we can't easily get to from the trunk. So we had to send our unit back. But video is very straight forward, and everyone reviews them very highly.


The following users liked this post:
fodalo (12-29-23)
Old 12-28-23, 05:12 PM
  #23  
Barncobob
Intermediate
 
Barncobob's Avatar
 
Join Date: Sep 2023
Location: California
Posts: 397
Received 174 Likes on 109 Posts
Default

some finished exhaust sounds would help me understand what is going on..
Old 12-28-23, 05:30 PM
  #24  
Enzo954
Pit Crew
 
Enzo954's Avatar
 
Join Date: Jun 2022
Location: Florida
Posts: 245
Received 109 Likes on 61 Posts
Default

It's not difficult to install the valve module. There is one plug that is extremely difficult to reach. You need to squeeze your hand into a very tight spot to connect it. I probably spent 10-15 minutes alone trying to get that one piece connected and I have fairly thin hands. Dropped plenty of F bombs in that period of time. LOL Worth it in the end though.

FYI.....IMO the exhaust sounds in his videos sound way more extreme than what I hear in my car. I think he had the mic placed next to the exhaust while he was recording.

Last edited by Enzo954; 12-28-23 at 05:40 PM.
The following users liked this post:
fodalo (12-29-23)
Old 01-05-24, 06:10 AM
  #25  
drutyper
Driver
 
drutyper's Avatar
 
Join Date: Jun 2019
Location: MD
Posts: 79
Received 31 Likes on 21 Posts
Default

Originally Posted by joes2018
Thanks. If you hear anything about a tune, please let me know. I had my 2018 MB GLA 250 ecu tuned by a tuner shop and it increased hp by almost 100 hp, I asked them about the LC 500, but they don't work on Japanese cars, only European.
@TunedbyLoi has a tune for the LC500. Pricey but if you put headers and exhaust, it'll probably give you at best 45 extra HP. He also does transmission tunes for it so the gearing would be quicker. He is the only one for now that tunes the LC500
The following users liked this post:
finny76 (01-22-24)
Old 01-07-24, 07:10 AM
  #26  
North1Star
Pit Crew
 
North1Star's Avatar
 
Join Date: Dec 2018
Location: EP
Posts: 160
Received 33 Likes on 25 Posts
Default

Originally Posted by drutyper
@TunedbyLoi has a tune for the LC500. Pricey but if you put headers and exhaust, it'll probably give you at best 45 extra HP. He also does transmission tunes for it so the gearing would be quicker. He is the only one for now that tunes the LC500
Kanoo Performance tunes the LC as well since late 2022

https://www.instagram.com/kanooperfo...RmYndqZDg3dGc0
Old 01-07-24, 07:28 AM
  #27  
Barncobob
Intermediate
 
Barncobob's Avatar
 
Join Date: Sep 2023
Location: California
Posts: 397
Received 174 Likes on 109 Posts
Default

Im not doin nuttin till the warranty is up.
The following users liked this post:
pinemind (01-26-24)
Old 01-23-24, 12:39 PM
  #28  
Chuck1112
1st Gear
 
Chuck1112's Avatar
 
Join Date: Jan 2024
Location: Budapest
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by joes2018
Does anyone have any suggestions on how to increase LC 500 horsepower? At over 4000 pounds, it could use another 20 to 30%.
https://theyotagarage.com/products/b...8-lexus-lc-500
Old 01-23-24, 03:23 PM
  #29  
fodalo
Instructor
 
fodalo's Avatar
 
Join Date: Jan 2021
Location: NH
Posts: 796
Received 333 Likes on 249 Posts
Default

Let us know how u make out joes2018.
Old 01-23-24, 03:48 PM
  #30  
F1nALMSfan
Intermediate
 
F1nALMSfan's Avatar
 
Join Date: Aug 2011
Location: WI
Posts: 493
Received 63 Likes on 21 Posts
Default

This appears to be mislabeled, as it should be for the LS500, not LC500. JB4s are for turbocharged engines, modifying boost pressures. Unfortunately nothing so easy for an NA engine.


Quick Reply: Horsepower Increase for LC 500



All times are GMT -7. The time now is 04:18 AM.