it's terrible quality doesn't justify its high price. I had one and sold it, were talking like ebay quality stuff.

 

There's a reason there's a huge market for the "z-tube" amongst the g35 crowd.

That being said for an NA 350z ecutek and uprev are both doing the exact same thing. No benefit to switching. Just ecutek is new and offers an ap and Bluetooth flashing, which most professional tuners do not want. If something interrupts the flash midway bad things happen... uprev started developing this years ago then dropped it to retain the solid cable interface.

Considering Uprev's recent move to include the ARC features for free with the reflash license (as it should have been originally!!) There is zero reason to use ecutek over uprev for an NA vq35de. (350z or g35).

 

I'm sure they are. Funny how things change once they have your money 😂

 

Ohh

 

wouldn't be the first, nor last time.
I've had several in the last decade of business with them, and even though I've spent well over $10k with them, they always try to make it my fault, or say I'm lying.

 

hm. I still bought today guess I’ll update when it’s here

 

Z1 also just put up a disclaimer that they do NOT support 2003 models... just FYI

 

Isn't that going to be the case for all cars without the factory Widebands? Or at least that's what I understood.

 

I've tuned a ton of 2003's with Uprev. Night and day improvement stock or modded

 

Yeah, my 04 is tuned on Uprev my Moncef. What I was referring to is the early 04s not being compatible with EcuTek.

 

last question after reading the rest of the forums does your Z had narrowband 02 sensors or did it come with wideband?