ordered KEM 345 today!

[Stroker]

So fill me in...I been running the hd300 and the 250 for a while. How's the 345 compare what should I expect difference? Hoping for a little better mileage

[JOE_JOE]

I get about 14.8 hand calculated running my 345 tune on my f250 with 35's. I've never ran any h&s tunes. But I know the 345 has some mean power. And I think it will be a little cleaner than the tune your running. After take off the 345 is clean.


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[Stroker]

Yea the stock h&s tunes are dirty! Mine hardly ever clear up

[Johnny77Mutt]

The 345 is a lot nicer than the canned tunes, so much more low end. My mileage went up about 2 mpg with the tune, I'm very happy with mine.

[Stroker]

Awesome that's what I wanted to hear!

[08twinturbo]

Every truck I have tuned with h @ s after switching to kem 345 they never swap back. It's the best street tune out. Imo.

[Bigshow1]

Just curious as to what everyone does for transmission re-learn when switching tunes? How much quicker does the adaptive learning strategy become when doing the back to back runs vs just driving it and letting it do its thing? How many runs / what throttle positions do you guys find works best?
I switch between my 345 for daily driving and the 210 when I tow. It seems just when I get the 345 shifting spot - on, I end up switching back. The 210 shifts good quickly, but the 345 takes a bit then it goes to being really nice...

[Pbrr1der]

Can you run that 345 kem tune on a truck with a stock tranny and w/o head studs? How does it compare to Spartans 310 tune? Sorry if im whoring your thread, just curious.

[strokin82]

It doesn't pull as hard as the spartan 310. Just from seat of the pants feel the 345 is not as powerful as the spartan 310


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[tsedsell]

Where do you get kem tunes? Do they send you a new card that you just plug into the mini maxx and its ready for download?