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Thank you for all these detailed information. I discuss them with our engineers. I personally think we should recommend replacing spark plugs in general for achieving a 0% issue rate.

Thanks for the feedback. This is the first misfire with a RaceChip with 93 or 94 octane. Luckily, we reduced the aggressiveness of the settings for new deliveries after the first issue came up. Though, we will discuss now internally whether we should recommend replacing (or re-gapping) the...

I am sorry to hear that. Which fuel and which setting were you using? Yes, just contact support@racechip.com and tell them your order number and that you want to get a more aggressive setting, because you replaced your plugs. Please give them a fews days time, because they are very busy at the...

That's a very tight schedule. I'll do my best. I am currently in California, but have no stock with me. I wrote you a PM.

I would love to see some comparisons. Just allow me two comments: RaceChip-specific: Due to the spark plug issue, the default setting of our tuning is less agressive than usual. It can be improved by selecting the Race mode. However, if the spark plugs are re-gapped/replaced, we can increase...

As I already mentioned before, we are searching for employees. So please share this information, if you know somebody who could be interested. Thanks! Are you an automotive techie and automotive enthusiast? Are you excited about building and developing a new US company in the field of German...

Good idea, thank you. I will check whether this is possible.

Sorry, it should be "replace or re-gap" in this sentence. We do not recommend specific brands. The physical specifications of the OEM plugs are as follows Hex Size: 16mm Thread Size 14mm Thread Reach : 26.5mm Seat type: Gasket

Okay, please let me quote myself: I really want to be clear, so please help me and tell me what is unclear in the post I quoted and what needs to be improved. Thanks.

Yes, you can run 91 octane in mapping 6/7 (or Sport mode if you have the app) if you replace your spark plugs.

Thank you very much for trying to sum the last posts up. Apparently, I am not capable of communicating clearly enough. I guess, a native American English speaker would do this much better. This is one of the reasons why we will open an office in California and hire Americans. We are currently...

Hm, I think I have to work on my wording. If you have 91 octane, you can't get the full power potential without replacing or re-gapping your spark plugs. No matter which tuning company you are choosing. So, you should either do this or just get a RaceChip RS or GTS, which do not unleash the...

Okay, this discussion is completely missing the point I wanted to make. But that's my own fault, because my posting can be interpreted that I am blaming the customer. NO, it is not the fault of the customer. It's faulty spark plugs. I wrote the fuel recommendation way before this issue...

Update: The user with the spark plug issues admitted, that he was driving in Race mode while using 91 octane. (Despite we are recommending at least 93 octane for the Race mode). So with this updated information, please let me emphasize following: There has not been a single issue yet with a...

I am talking about octane in the US - meaning AKI or (R+M)/2 and not RON. So 91 octane is bad fuel quality if you have a Kia Stinger. 93 octane is good fuel quality. The Race mode is designed for 93-98 octane. With 93 octane fuel, you can use every mode. With 91 octane maximum Sport mode (or...

They are running in Race mode

Honestly, I don't know the specification of the replacement plugs. Kia would not be very smart if they would install faulty spark plugs for a second time. Unless they need more time to solve this issue. Processes are slow in big companies... We can adapt the settings of your RaceChip so that...

A German customer sent us his dyno results. Kia Stinger with cat-back exhaust installed (without RaceChip): 386 PS = 381 HP Kia Stinger with cat-back exhaust installed AND RaceChip GTS Black in Race mode: 450 PS = 444 HP So he got +63 HP !

"Spark plugs are usually never an issue when using RaceChip." This is still true. We sold more than 500,000 products for 3,000 different car models in the last 10 years. This is the first time that we see a manufacturer having serious quality issues with their spark plugs. This is quite...

We will update our recommendation, because Kia in some cases has issues with their spark plugs in combination with bad fuel quality: Kia Stinger stock spark plugs are designed for good fuel quality. If used with bad or medium fuel quality (91 or lower), in rare cases the spark plugs might get...