BNR Stage 2 - not worth it without upgrading exhaust?

[Thor Hammer]

Originally Posted by vshang Thanks all for chiming in. A few questions: 1. Can someone point to a list of e-tuners? I went to the "E-Tuners / Custom Hardparts" subform (E-Tuners / Custom Hardparts - Mazdaspeed Forums) and only saw one forum for Stratified Automotive Controls. I noticed that Freektune is a forum sponsors, so that's another one. Should I just choose between these two? I found a few more on Google, but didn't see them in the forums... 2. I was seeing a bit of smoke at WOT in the lower gears before my turbo died. BNR had mentioned that a possible cause of failure for the turbo is blow-by. Assuming my compression is OK, would a catch can help, or is there anything else I should do? 3. I will be shipping my broken turbo back to BNR to have them repair it. Do you guys think that's a good idea, or should I just get a new one from them? I don't suppose any bay area Nator folks would be curious to take a peek at the old one before I send it off to BNR?

1. Contact Freektune. You will be very, very happy. There is also Tuned by Nishan and Purple Drank.

2. Do a compression and leak down test and post the numbers.

3. Send it off for a rebuild or get an S3/S4 and downpipe. And an aftermarket TMIC as stock sucks and heatsoaks easily. Then you wont be disappointed in the HP numbers. But don't expect a wildly huge gain on our shitty California 91 octane. Maybe consider getting a second map from Freektune for E85. Most run around a 30% mix and gain around 50HP over pump gas only.