I am currently Osiris tuned and I recently picked up a MREV2. Basically I am wondering if I can install it and hold off on a re-tune until I install my HFC. I'm looking at probably a 30-60 day time period in which my car will be driven approximately 2k-4k miles. I will schedule a re-tune within 1 week of installing the HFC.

Current engine mods on my 2004 Sedan 6MT:

Stillen Cat Back Exhaust
Motordyne 5/16 Spacer
Stillen Short Ram Intake
Uprev Osiris Tune

Thanks

 

I thought the MREV2 was ONLY for the 05'-06' "Rev Up" motor?

 

There have been proven gains using both the MREV2 and the 5/16 spacer on the nonrev motor. On a cost basis, its not worth it for most, but I got a good deal on this MREV2 and I couldn't pass it up.

If you give me a sec I will find a dyno chart reflecting gains on a nonrev sedan.

 

As you can see, it does help in the low end of the spectrum. These gains are before a tune, which should correct the 4500-5500 rpm range and provide further gains throughout.

 

I know it made a real "butt dyno" difference in my 05' sedan.

 

you will be fine

 

Thanks Joe. My main concern is that the additional air flow will adjust my MAF curve or fuel compensation table to unacceptable rich/lean conditions.

 

It will throw it off a little, but no where near dangerous levels