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Old 03-31-2020, 01:27 PM   #15
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They won't ship the 5Star to CA. I installed mine after six months of driving my rig. It has increased HP and torque. The dyno results are on their website and they stand by them. Before my rig would down shift and rev up on an overpass at highway speeds losing a min of 5 mph. Now it stays in 6th gear and growls and maintains set cruise speed. Is it my imagination? With hundreds of thousands of miles of RV experience in all kinds of different rigs I know what increased power is. And I know how to read a dyno test that shows marked increases in power and torque at lower RPM.
Then you know that all of the readings are at WOT ( Wide Open Throttle ), even the lower RPM readings.
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Old 03-31-2020, 03:38 PM   #16
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i guess they both do almost the same thing.. the first tune that 5 star sent me was great but i wanted a little more torque so i could use my cruse more. they emailed me a second tune and got just what i wanted and about .5 mpg more because it wasnt dropping gears on bigger hills. iam very happy with it and a lot less engine noise
I noted a significant decrease in cabin noise as well. However, since I added sound deadener at the same time, I didn't attribute it to the tune.
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Old 03-31-2020, 05:02 PM   #17
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Then you know that all of the readings are at WOT ( Wide Open Throttle ), even the lower RPM readings.
As far as I know dyno tests for hp/torque are all at WOT are they not? Otherwise how could you have a valid before and after comparison?
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Old 03-31-2020, 05:16 PM   #18
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They won't ship the 5Star to CA. I installed mine after six months of driving my rig. It has increased HP and torque. The dyno results are on their website and they stand by them. Before my rig would down shift and rev up on an overpass at highway speeds losing a min of 5 mph. Now it stays in 6th gear and growls and maintains set cruise speed. Is it my imagination? With hundreds of thousands of miles of RV experience in all kinds of different rigs I know what increased power is. And I know how to read a dyno test that shows marked increases in power and torque at lower RPM.


I live in CA and purchased 5 Star that was sent to me. When I went in to do the smog check I reverted back to stock settings and passed. The only negative for me is the surge in cruise control on long hills. Otherwise thankful for the purchase.
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Old 03-31-2020, 05:24 PM   #19
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Just a reminder that as an IRV2 member you will get a discount for 5 Star Tune. Makes the price even better.
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Old 03-31-2020, 05:44 PM   #20
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As far as I know dyno tests for hp/torque are all at WOT are they not? Otherwise how could you have a valid before and after comparison?
I'm making the point that you can't realise more HP or torque from a tune, at part throttle. Some claim to feel more power in regular driving. What they feel is a reprogrammed throttle response.
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Old 03-31-2020, 07:26 PM   #21
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Just a reminder that as an IRV2 member you will get a discount for 5 Star Tune. Makes the price even better.
Their regular price is now same as the irv2 discount.
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Old 03-31-2020, 09:11 PM   #22
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I live in CA and purchased 5 Star that was sent to me. When I went in to do the smog check I reverted back to stock settings and passed. The only negative for me is the surge in cruise control on long hills. Otherwise thankful for the purchase.
Did you go back to stock because you didn't want to take a chance, or do you know for sure that it won't pass with the 5star tune...???

Also, how many miles did you have to drive to reset all the smog monitors...??
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Old 03-31-2020, 09:49 PM   #23
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Did you go back to stock because you didn't want to take a chance, or do you know for sure that it won't pass with the 5star tune...???

Also, how many miles did you have to drive to reset all the smog monitors...??
I have smogged mine twice now with the tune loaded and it passed. I also live in CA.
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Old 03-31-2020, 11:09 PM   #24
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I have smogged mine twice now with the tune loaded and it passed. I also live in CA.


I drove about 15 miles. Just an abundance of caution going back to stock. I will try next time to not change it.
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Old 04-02-2020, 07:53 AM   #25
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I'm making the point that you can't realise more HP or torque from a tune, at part throttle. Some claim to feel more power in regular driving. What they feel is a reprogrammed throttle response.
True. Most folks use cruise control and have no clue what the throttle is doing. They like to set it and forget it so that they can focus on the road ahead without trying to maintain proper speed which can be a challenge driving a big slowly responsive MH.

My point is that Ford uses it's factory tunes to control HP and torque in the big V-10. 5Star brings it back to 362HP and 457FP @ 3250RPM. Get one and try it for yourself. You will be pleased as thousands of others have.

I owned an older rig with 2007 chassis before Ford de-tuned it and was pleased with it's power. I was disappointed with my new rig when I first drove it. It was constantly searching for gears and was under powered. I read about the 5Star and decided to try it. It was the best investment I have ever made in a MH modification.

When I ordered mine there was a note on the web form stating "not legal and ship-able to CA" (I guess that changed?). And no I don't work for them, but I did get the IRV2 discount.
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Old 04-03-2020, 05:16 PM   #26
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True. Most folks use cruise control and have no clue what the throttle is doing. They like to set it and forget it so that they can focus on the road ahead without trying to maintain proper speed which can be a challenge driving a big slowly responsive MH.

My point is that Ford uses it's factory tunes to control HP and torque in the big V-10. 5Star brings it back to 362HP and 457FP @ 3250RPM. Get one and try it for yourself. You will be pleased as thousands of others have.

I owned an older rig with 2007 chassis before Ford de-tuned it and was pleased with it's power. I was disappointed with my new rig when I first drove it. It was constantly searching for gears and was under powered. I read about the 5Star and decided to try it. It was the best investment I have ever made in a MH modification.

When I ordered mine there was a note on the web form stating "not legal and ship-able to CA" (I guess that changed?). And no I don't work for them, but I did get the IRV2 discount.
I'll stick with a stock tune. I don't want my engine lugging ( growling ) up hills.

Lug them and the get hot and waste gas.

My 2017 V10 Axis is a 2 valve V10 in a E450 chassis. Just pulled the 6 mile, 5° grade, northbound on I-77, Fancy Gap, at 65 MPH, towing a 4 door Honda Ridgeline, in Cruise control.

No complaints and more then enough power, without spending $400.
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Old 04-04-2020, 07:20 AM   #27
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Originally Posted by Reacher View Post
True. Most folks use cruise control and have no clue what the throttle is doing. They like to set it and forget it so that they can focus on the road ahead without trying to maintain proper speed which can be a challenge driving a big slowly responsive MH.

My point is that Ford uses it's factory tunes to control HP and torque in the big V-10. 5Star brings it back to 362HP and 457FP @ 3250RPM. Get one and try it for yourself. You will be pleased as thousands of others have.

I owned an older rig with 2007 chassis before Ford de-tuned it and was pleased with it's power. I was disappointed with my new rig when I first drove it. It was constantly searching for gears and was under powered. I read about the 5Star and decided to try it. It was the best investment I have ever made in a MH modification.

When I ordered mine there was a note on the web form stating "not legal and ship-able to CA" (I guess that changed?). And no I don't work for them, but I did get the IRV2 discount.
i love my 5 star tune and the people.. i dont work for them eather
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