toky916

RR Raceing tune detectable by lexus if is was to be checked ?
Im still under warrenty.
Just wondering since I'll use get rid of the Cel when I get headers done.

Evil Teo

iTrader: (13)

not detectable, but you have the option of just putting it back to stock with the handheld unit.

s4chico

I would be more worried about headers being 'detectable' when it comes to warranty. lol

toky916

Well headers don't void warrenty as I've spoke to my dealer and many others have done this.
My only worry was if they can detect the tune since then if I went back to stock with the tune the CEL would light up.
So that way don't have to worry and just take the car to the dealer and leave it tuned.

flowrider

iTrader: (9)

^^^^They most certainly void the Emissions Warranty. Don't know if that's important to you. It was not important to me. The CEL lights because it doesn't detect cats with the stock tune.

Lou

toky916

Yes that part I know mostly was concerned about the power train.
When messing with the exhust. Same way the Figs control arms they don't like to touch that I compleatly understand.
I've spoke to RR and they also said they don't think they can detect the tune. So I was going get the tune to get rid of the CEL and also get some benifits from the tune and leave it tuned. Even when I take it to the dealer for any issue I might have later.

Also the is there still a promo code for the tuner ? I've tired IAMTUNED not valid still would like to save a buck if possible.

Bigjon3475

iTrader: (2)

The only savings, I think, is when you buy a combo pack.

It depends on how competent your service person is. If he works on F's all day and has an ISF then he'll more than likely be able to tell something different about the car, whether or not they can detect it. It would be easy for them to figure it out by disconnecting the sensors and seeing if it throws a code. Of course they'd have to know about the tune and the bypass already which probably means they're a member here or heard some third-hand rumors. In which case you are FUBAR. 🤓

toky916

They need to see the code or tune to prove it plus just cuz one has a opinion at the dealership. If nothing shows up I feel like you would be fine as long as don't find the programming in the ECU when you blow your motor or tranny.

In my opinion I feel like I'm just thinking of the worst possible scenario. Since I payed for the extended warranty.
Worst case I'll leave the headers stock and just add tune worst case I can flash back with out having a CEL.

semnosNSX

I to have wondered if the tune is detectable, but not for reasons of a dealer warranty as mine has expired. I was thinking more along the lines of smog checks in California. Has anyone in cali had the chance to get their car smogged while the tune was in place?