"the Tune" by SVC vs. 93 Perf Tune by 5*

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svc

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They are both left on unless you are running no cats or high flow cats

-Jeff
 

ramx50

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They are both left on unless you are running no cats or high flow cats

-Jeff

Ok, I am running high flow cats and if they are not on then I will not be able to pass MA inspection. The inspection computer will read "cats not ready" and fail me.

I have read a few guys have had this happen to them.

Do you have a fix to pass MA inspection??? Maybe a temp tune to use with all the cats on???
 

svc

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This is strait from our tuner. " If I turn them on he will get a catalyst efficiency code and it still won't pass MA emissions. If we turn them on he will have to install a set of O2 spacers to retrieve the proper signal the PCM wants to see. "

Let me know if you need more info on this

-Jeff
 

ramx50

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This is strait from our tuner. " If I turn them on he will get a catalyst efficiency code and it still won't pass MA emissions. If we turn them on he will have to install a set of O2 spacers to retrieve the proper signal the PCM wants to see. "

Let me know if you need more info on this

-Jeff

Yes, I will have to pass so I do need a solution. Do you have the O2 spacers I will need?
 

svc

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Yes please! I promise the turn around will be faster this time
 

Wilson

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Here it comes. E-30 I ran it with out a tune at all for a month and had CAI sw headers and high flow.cats never had a cod thrown.
 

bosssho

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I liked the 5* economy shifting a lot. It got me to 6th gear quick while coasting. But the performance tune shifting I found to be a bit aggressive. It was fun for a little while. That's an advantage to the 5* tunes - more flexibility in shifting strategies. But with that comes a risk. I'm sure it nothing too crazy since tons of people have been using it for a while now. But being able to get the strategy you want is a plus I think.

That was me...I liked it and whoah what a difference, but honestly unless I had an AWD truck like my old Sierra Denali, you needed to be at the drag strip to really need/want those shifts. The truck would constantly blow out the tires at every intersection and the shifts would slam you b/c the engine torque management was basically gone. I kept the 93 tune installed, but went back to stock shifts and it's been mint.

Maybe I should have Mike set me up with something inbetween on the shifts.

Also FWIW, when I go to my place in Northern NH they only have 91 so I am blending, and have yet to hear or feel an issue.

---------- Post added at 09:15 AM ---------- Previous post was at 09:09 AM ----------

Good luck if you go 5 star...took me over a month to get a hold of someone, emails, phone calls...no dice. Jeff is pretty responsive over email...weekends, nights...guy doesn't sleep apparently lol.

I do have to say I have seen Jeff replying on this thread left and right, but when I DID have questions and tried to call that was not smooth, so I went to email and some times I had to RESEND the email before I got an answer from Mike and the way the answer was constructed was not so much disrespectful, but it certainly came across as condescending and just not friendly...like he was NOT glad to reply/help. I understand busy, and I understand guys that LIVE and BREATHE this stuff might thing one of MY questions is stupid or beneath them, but without us...they are not in business.
 
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