beltone

I have MMR CAI and tube just added Manaflow duals and H pipe. My X-cal 2 is just programmed for CAI and tube. MMR won't send me new tune. custom tune is about $400- $500 on dyno. what is better just pay for tune or pay $$ for custom. who els can send me tunes for smaller fee that will work with my mods ? muscle moter want $100 for two tunes 87oct and 92oct

bertkey1

wow that sounds wierd i can get a custom dyno tune at my shop for $130, are oyu sure they weren't adding in a tuner with it.

beltone

that was just for time in dyno and tune Aubern WA.

bertkey1

You should call some portland,oregon shops since it mght be worth your time to drive down, i would recommend the shop i am going to use but they tune off the predator

beltone

I just talked to Mark at MMR he states no re-tune is needed just from adding dual exhaust, it just leans out couple of percent. The computor can adj for small changes. He also stated keep a eye on MMR web site lots of new products comming for V-6. Great service; but talk to Mark, not hired help.

scrming

here is what we found with the MMR... The CAI actually fools the computer into thinking it is flowing less air than it really is... This should up in the data logs... I did a before and after capture... this results in leaning out the car... that's how it make more power... I my mind this is some what deceptive... we ended up having to add like 18% more fuel across the board to compensate... I'm sure most of the CAI that say no tuen required work this way... I mean I like the MMR stuff... it's nice... but not sure I agree with the way it was marketed...

Hambone

If I'm reading his post/question correctly, he has a tune for the CAI already. He's asking about adding a dual exhaust system and H-pipe now....

I did the same thing recently---added a dual exhaust with X-pipe. No check engine lights, car is running fine. It makes sense that the car can adapt to this (relatively speaking) minor change...

If you want better than this, I'd suggest getting a real dyno tune of the whole system...but it seems like it'll be expensive!