BMW 335i...Vishnu retune

[EricS4]

@SMort38

i guess it’s a possibility, but i think their retune involves more than just upping the boost to some rediculous level. i know there are a few companies out there (including vishnu) that do this sort of thing with the subarus and evo’s and i haven’t really heard anything about blown turbos, or motors for that matter, with these off the shelf tunes. i think they have to keep them relatively tame because they dont get to dyno every car that runs their product.
these companies have to keep their image up, if people started smoking turbos and motors with their software, they wouldnt be in business very long. it seems like far more trouble comes when people get brave and try doing this kind of stuff themselves because the read about it on the internet.

I can only speak to the reliability of the bi-turbo set up on the Audi B5 S4 2.7L. The engine is shoehorned into the engine bay and the turbos are exposed to a lot of heat. The 335i engine design does not look much better. Nor do the turbos look much larger. However, it might very well be a great design. Nevertheless, dozens, and dozens, and dozens of S4 owners can attest to blown stock turbos (9psi). The process is accelerated with an ECU upgrade (15-18psi). Naturally the Audi tuners are just as reputable as any WRX or Evo tuner. It’s just the price you pay to play. I made it 62k miles before the passenger side turbo sh*t the bed. Roughly 50k of those miles were chipped.

Again, this is all based off what appears to be a similar engine set-up that I’ve been exposed to the last three years.(I’m not all that familiar with the single turbo set-up of the WRX and Evo.) The 335i engine design might be fantastic… I’m just providing some food for thought.