I was wondering if anyone knew about any aftermarket brands i could use to upgrade my brand new 335XI without the dealer voiding my warranty- Thank You For

They can't void the warranty. They have to prove that whatever damage they won't cover was caused by the part you installed.

What kind of upgrades are you looking for (engine, suspension, exhaust, aero kits, cosmetic, ...)?

engine parts such as , exhaust, air intake , BOV's and ECU

engine parts such as , exhaust, air intake , BOV's and ECU

They can't void the warranty. They have to prove that whatever damage they won't cover was caused by the part you installed.

Well "can't" is a strong word, but yes - the burden of proof is on them to prove your mods actually caused the trouble. Most people just bend over and take it when the dealer says "Oh, you're not covered because you modified the car" but if you fight it and your mod really had nothing to do with it, you'll win.

ok my question to you (SAL123) is that if i were to get a ECU upgrade and just say i was going in for a tune up would they still do the tune even though it does not have the original ECU settings?

Depending on what you're talking about yes...if you reflash the ECU they can detect the changes to the code. I think Vishnu and TT say they don't mess with codes so the ECU sees nothing.

Depending on what you're talking about yes...if you reflash the ECU they can detect the changes to the code. I think Vishnu and TT say they don't mess with codes so the ECU sees nothing.

so basically you are saying if i were to use a vishnu ECU upgrade the BMW dealer computers would never know that the chip was upgraded?

I have another question would aftermarket exhaust void the warranty?

I have another question would aftermarket exhaust void the warranty?

No but if you have a complaint like exhaust rattles or o2 sensors faults due to exhaust leaks from the aftermarket exhaust then the dealer won't work on it.

so basically you are saying if i were to use a vishnu ECU upgrade the BMW dealer computers would never know that the chip was upgraded?

BMW diagnostic computers may have a way to detect if a Vishnu Piggyback computer has been installed if the DME shows internal faults but doesn't throw a service engine soon light.

BTW, if you're scared about your losing or having your warranty voided, then don't mod your BMW. ALL aftermarket mods can void your warrany. It just depends on what complaint you have on your BMW and the area that's modified.

No but if you have a complaint like exhaust rattles or o2 sensors faults due to exhaust leaks from the aftermarket exhaust then the dealer won't work on it.
ok ya your right i wasnt planning on upgrading the ECU for a long time . i did want to put exhaust and Air Intake but that would be the only upgrade engine parts that i would do for awile. so i understand for instance if the exhaust rattles and BMW covers that, but would that complately void all of my warranty ?

the vishnu boxes usually leave insignificant codes in the system, but if the tech isnt looking hell just clear em and not think twice

turner reflash your original dme
short of reading the code, and comparing it to an original(something the dealer has no clue how to do), i dont see any way for them to know

unless they go racing your car against a stock 335 at which point im sure BMW NA would like to hear about their road testing procedures

exhaust and intakes cause more warranty problems then chips anyday just cause there visible, audible and obvious

Any idea what percentage of Vishnu installs cause catastrophic failures? Isn't the probability of something going wrong higher than with an exhaust upgrade.

BTW, if you're scared about your losing or having your warranty voided, then don't mod your BMW. ALL aftermarket mods can void your warrany. It just depends on what complaint you have on your BMW and the area that's modified.

+1. It's OK with me if you mod your car (I've done plenty of that too) but I think it's pretty 3rd rate when people want something for nothing.

Of course I will put in a plug for our Turbo Tuner. Best bang for your buck in my opinion, although I admit I am biased. But I do get to drive them everyday :)

Install takes a minute or two and removal is just as fast. It does not leave a trace that is was there so no way for a dealer to know unless you tell them, which you won't!

Jeff
Eurobahn

Install takes a minute or two and removal is just as fast. It does not leave a trace that is was there so no way for a dealer to know unless you tell them, which you won't!

how is that it hides ? in otherwards what kind of shield does this upgrade have that does not allow dealers to see?

Install takes a minute or two and removal is just as fast. It does not leave a trace that is was there so no way for a dealer to know unless you tell them, which you won't!

how is that it hides ? in otherwards what kind of shield does this upgrade have that does not allow dealers to see?


when you take the car in for service, you just pop turbo tuner out of the car and the dealer will never know that it was there. I could tell how we do that, but then I would have to kill you:)

You will love the performance!

Jeff
eurobahn

So Jeff you are telling me that there is a 100% gurantee that the dealer will not be able to know it was ever used?

So Jeff you are telling me that there is a 100% gurantee that the dealer will not be able to know it was ever used?


I wish I could give you a promise that there will never be a way for the dealer to detect our unit. What I can say is that as of now the unit has never been detected even when the unit was left on the car on purpose!

Best I can do for you truthfully :)

Jeff
Eurobahn Iphone

Barvia SLV335XI, I just picked up my 335i coupe (6MT, Prem, Sport) and watched the forums a lot in the three months it took to take delivery. If you search the forum for 'turbo tuner' you'll find a lot of useful information, almost all of it glowing. It appears to be a safe, effective, and unnoticeable (to the dealer--apparently quite noticeable to the driver!) mod because of the ease of install and uninstall. I plan on having it installed after my break-in period and after some experience with the car without the mod. I figure I'll enjoy it more then. From the threads I've read, Jeff at Eurobahn has been very accessible, knows the product (and competitors, a few of which offer more power but are harder to install and uninstall/hide), and has generally been extremely helpful to members. The turbo tuner has been very well received, and offers good bang for the buck, so that's why I'll be going that route.

Jota Thank you very much you post was very helpful , i want to mod my car but i cant afford moding it and then something else going wrong with it, but thank you

Jota Thank you very much you post was very helpful , i want to mod my car but i cant afford moding it and then something else going wrong with it, but thank you

Then don't do it. I still agree with the general wisdom that the best mod one can do is driving school. That'll never make something go wrong with it.

Then don't do it. I still agree with the general wisdom that the best mod one can do is driving school. That'll never make something go wrong with it.
+1, the only thing you could end up breaking is bad habits :stickoutt. Now if only I lived closer to SC.

+1, the only thing you could end up breaking is bad habits :stickoutt. Now if only I lived closer to SC.

A lot of the local BMWCCA clubs do driving schools too....

Barvia SLV335XI, I just picked up my 335i coupe (6MT, Prem, Sport) and watched the forums a lot in the three months it took to take delivery. If you search the forum for 'turbo tuner' you'll find a lot of useful information, almost all of it glowing. It appears to be a safe, effective, and unnoticeable (to the dealer--apparently quite noticeable to the driver!) mod because of the ease of install and uninstall. I plan on having it installed after my break-in period and after some experience with the car without the mod. I figure I'll enjoy it more then. From the threads I've read, Jeff at Eurobahn has been very accessible, knows the product (and competitors, a few of which offer more power but are harder to install and uninstall/hide), and has generally been extremely helpful to members. The turbo tuner has been very well received, and offers good bang for the buck, so that's why I'll be going that route.

Jota.

Thanks for the kind words. My wife would disagree with me being accessible especially when there is house work to do ;) As far as the Turbo Tuner goes, we have made it as safe as we can. The system is designed to safe guard the engine and pull back on power when needed. Of course not being detectable is a big help when a normal service visit is needed :) It is simple the best bang for the buck we could think of from a performance stand point.

I do agree that a driving school is a definite plus for anyone who wants to get the most out of these fabulous cars!

Jeff
Eurobahn

A lot of the local BMWCCA clubs do driving schools too....
Yeah, but don't want to use my new car. Maybe if I don't end up selling my old one, I'll use that.

What kind of gains can we expect from the Turbo Tuner.

I think roughly around 40hp or so i really do not remember

50whp-50trq.From what i,ve read so far. After my break-in that will be the only mod i do.

What kind of gains can we expect from the Turbo Tuner.

It comes down to octane. Since you live near us you will be running 91 mostly. In general on a normal temperature day here in the southland you will get between 40-45HP and about 50 torque. If you add a few gallons of 100 octane, that number will jump up to about 54-55HP and about 58-60 torque. If you add our new plasma coil packs those number will go up higher! As much as 15HP.

Thank god there are still 76 stations that carry the hundred octane at the pump!

Jeff
Eurobahn