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Old 01-01-2020, 08:37 AM   #15
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Quote:
Originally Posted by gatorcq View Post
Not bad $500 for 15 minutes of work
The dealer has to buy the flash from CAT then add their overhead.
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Old 01-03-2020, 02:56 PM   #16
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reporting back...

The 350 re-rate was worth the $500. It definitely feels better on the small to medium grades. It feels great again on the flats as well. Keep in mind this is all with towing a trailer. Previously with the trailer in tow, it would feel like I was going against a head wind... now with the little extra added power, it feels similar to no trailer at all on the flats.

The big grades still suck, but I expected that. For the money spent, I would say it was worth it, considering it is a factory CAT tune... it had no change on my temps.

Also, having the engine brake reprogrammed to latch mode was a huge improvement in driving experience.
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Old 01-06-2020, 05:12 PM   #17
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[QUOTE=JLWoodward;5094188]How would I know what range/group I fall under by engine serial? That chart did t show serials. I'm kal47050. Would really like 350 as it's got a nice torque range, but I'm. Guessing mine can only go to 330. Would going route of mp8 tuner be better?[/QUOTE

The MP8 worked great on my engine. Better low end and hill climbing. Gained on average 1/2 mpg.
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Old 06-23-2020, 08:16 AM   #18
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I'm doing the rerate today to 350 on my C7 CAT in Winchester VA charges $700.
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Old 08-02-2020, 05:23 PM   #19
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I'm doing the rerate today to 350 on my C7 CAT in Winchester VA charges $700.


Did you do your rerate? And .......?
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Old 08-03-2020, 07:16 AM   #20
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Yes. Cost was $700.
I noticed a reduction in RPM by 100 to 200 at 65mph.

Don’t have to push the pedal to the floor on the highway as much

Shifts are smoother.

Seems to get a little hotter going up hill but the fan kicks on and goes down quickly. It was near 100 outside air temp

You can feel the power at the higher RPMs.

I think it was worth it
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Old 08-11-2020, 06:38 PM   #21
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Yes. Cost was $700.
I noticed a reduction in RPM by 100 to 200 at 65mph.

Don’t have to push the pedal to the floor on the highway as much

Shifts are smoother.

Seems to get a little hotter going up hill but the fan kicks on and goes down quickly. It was near 100 outside air temp

You can feel the power at the higher RPMs.

I think it was worth it


Thank you for your reply.
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Old 08-28-2020, 04:46 PM   #22
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FYI, prices look like they may fluctuate for the upgrade depending on your location. Mine was just completed on Tuesday at Cleveland CAT near Lancaster, PA and the cost was $399 excluding taxes. Definitely feel a bit more power and completed as I will be flat towing a 4 door jeep.
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Old 08-29-2020, 06:31 AM   #23
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I'm glad it worked out for you.

For anyone else considering this - just be aware that (according to YouTube site "Adept Ape" the Cat mechanic) doing a rerate Flash of the ECM can damage the ECM (corrupt it or wipe up) requiring a replacement ECM (which is over $1,500 up). He said 1 in 30 flashes fail. And Cat will not cover the cost of an ECM replacement.

He talks about this risk at the 8:00 minute mark
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Old 08-29-2020, 10:33 PM   #24
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Most problems with ECM flashing are caused by the tech not the ECM. But I think the 1-30 is very high number. I know our service department was not having that kind of failure rate. We were doing hundreds of flashes every 6 months and did not see that kind of failure rate. Safe Travels.
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