This site has been a huge help while researching and now dialing in upgrades for my new 2025 IS 350 F Sport.

Big shout-out to BOTA36—his Incognito build and upgrades really caught my attention, and he has been a great resource whenever I had questions. I’m hoping this write-up might help others who are considering some of these mods.





Buying the Car

I initially started out looking for CPO cars but couldn’t find one with the options I wanted. Then I saw a 2024 in Incognito, and immediately decided that was the only color for me. I’m also not a fan of white or red interiors, so black interior was a must.

I actually missed buying a used one by about 30 minutes.

Around the same time I saw that Lexus was offering 3.49% APR and a $750 rebate on new cars, so the decision became pretty clear, go new.

Exhaust



Based on some good advice from this forum, I started looking at the F Sport Performance exhaust. I’m a suburban dad and didn’t want a loud car, but I did want to free up a bit more sound.

I found the exhaust online on sale from Lexus of Ramsey, NJ for $1,075 shipped. My dealer wanted about $2K installed for the axle-back setup.

Instead, a local muffler shop installed it for $200.

I’m happy with it. There’s no drone at all, which was important to me. When cruising it still feels like a refined sport sedan, but when I get on the throttle it produces a nice throaty V6 roar, and cold starts now hint a bit more at what’s under the hood. The double walled tips look great as well.

Dash Camera

I installed a FitCamX camera in my Toyota Highlander Platinum (same engine as my Lexus!) and liked it so much that I bought one for the IS as well.

Installation took about 15 minutes and it works great. Some people say the video quality isn’t the best, but I can clearly see license plates both day and night. The biggest plus is how stealthy the integration is.

Exterior

BOTA36 swapped the “F” fender emblems on his Incognito, and I liked how it removed the only white accent on the car.

At first I tried using a black paint pen on the existing emblem, but I wasn’t happy with the result. I ended up buying the OEM Lexus version with the black background. It’s a subtle change, but I like it. Had I not seen his car, I probably never would have thought twice about it.

That’s both the blessing and the curse of this forum.





I also debadged the rear “IS 350” to clean up the look.



Aero Flow Dynamics Overlays








I’ve never smoked out lights on any of my previous cars, but I considered having a shop wrap most of the lighting (minus the headlights).

Instead, Aero Flow Dynamics sells a pre-cut overlay kit in light, dark, or blackout options. For about $110 I got nearly all the pieces they offer. I also ordered a matte black Lexus “L” emblem with a gloss black background.

After watching an install video, I took my time and installed everything in about an hour.

The rear emblem overlay didn’t turn out perfectly—it has a few crinkles at the edges—so I may order another one and try again. Everything else went on surprisingly easily.

I used dark smoke for most pieces and blackout for the rear reflectors. I really like the look so far. Time will tell how long they last, but they should be easy to remove if I ever change my mind.
Tint

I went with a 20% tint all around, except for the windshield, using a more budget-friendly option.

The look is fantastic—black windows against the Incognito Gray looks amazing—but I’m a little disappointed in the clarity out the rear window at night. There are some halos and refracted headlights that I don’t see in my Highlander’s factory tint.

I may talk to the tint shop about replacing the rear film with something higher quality.
Audio



After reading a few threads, I installed JBL Club 34 (3.5") speakers in the dash. It was a quick and easy install following a YouTube video.

These definitely added better clarity and improved highs. I also adjusted the audio settings—moving the fader slightly rearward and bumping up the mids and highs—which helped.

The biggest improvement, though, came from adding a subwoofer.

I already had a Pioneer 12" sub in a low-profile box from an Acura MDX I owned a few years ago. It had only been used for about six months and had been sitting in my garage ever since.

My wife now drives the new Highlander and didn’t want it installed there, so the Lexus got it instead.

I bought a 400W RMS amp and install kit and ran the wiring along the passenger-side floor rail. Removing and reinstalling the trim took some patience, but I was able to route everything to the factory amp area, then across to the driver’s side.

Using a pin-out diagram I found online, I tapped into the factory amp for the subwoofer signal and remote wire. The pin locations were correct, though the wire colors had changed.

The amp fits perfectly in the driver-side cubby under the trunk floor, mirroring the factory amp location.

The sub is down-firing and low profile, so it doesn’t take up much of the already small trunk. I’m not trying to wake the neighbors—I just wanted the low-end bass the factory system was missing.

Better door speakers might help further, but I think I’m done with audio upgrades. I like hearing the car almost as much as the music.

Lighting

I added door puddle lights from lexusacc.com.

They were about $55, took five minutes to install, and look great with a very clear projection. My only complaint is that the color is a bit bluish-white, but that’s minor and could probably be corrected with some film if I cared enough.

Still To Do

A YouTube video showed an Incognito IS in a showroom with some nice upgrades, including a chrome delete, front lip, and F Sport orange calipers.

I had been thinking about painting my calipers yellow, but the more OEM-style F Sport orange look really grew on me—almost like the RC F calipers.

I ordered oversized F stickers from eBay, along with VHT 733 True Orange caliper paint and VHT clear coat.

Other things planned:

• Rear roof wing (eBay – $95)
  Plastic but matches the shape of the OEM trunk spoiler. I had it installed but removed it temporarily for tinting. It will be going back on soon.
• Front lip
  Picked up a $150 eBay lip that I’ll install now that the snow is gone.
• Duckbill spoiler
  Still deciding. I’m doing gloss black everywhere, but most of the options available seem to be carbon fiber. Any suggestions for duckbill with gloss black?
• Interior LED lamp lighting upgrades
  (If anyone has good links to the T10s you used I’d appreciate them.)
• LCA bushings
• Mirror puddle light LED

 

Congrats on your ride and definitely like the MODS you have so far.I'm trading in my modded 2017 IS350.. ( I have the white with red interior).. Im thinking of getting the Mica Blue with white interior or Red with Black interior..

 

Thanks. I was worried the white would get dirty too fast for my family oriented lifestyle. I the 21-25 Red was too much but the new 2026 red is only about half as much red as the last generation and looks more balanced. I love the Mica Blue color and the Red. Too many black, white and silver IS 350's for me. I like my color and the red and blue as you mention.

 

Roadpupp, so happy I was able to help. You can instant message me any time if you have any other questions. Here's my input on some of the things you mentioned.
1. Duck wing spoiler in gloss black. Link below.
For Lexus IS300 IS350 IS500 2021-2025 Gloss Black Duckbill Rear Trunk Spoiler | eBay
2. Speakers in 4 doors. I think it's a game changer IMO.
3. Halos in rear window at night. Definitely not normal.

Can't wait to see more pics.

 

Nice and simple!

Did it have the ML package?

 

Chis- No. Finding this color was trouble enough. I would have wanted the larger screen, but found none around with this color.

 

I reinstalled the roof spoiler, and took off the wrap and original rear emblem. Replaced with black from Ebay and stuck on the IS 350. I think I liked it better with no IS 350 though, so I may go back.