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Old Mar 12, 2021 | 09:53 PM
  #1  
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Default Aftermarket TMPS

Walked out this morning and noticed driver's rear tire low. Filled with air and took to PepBoys for a tire patch. As I feared. the tire was cooked. The below and others are on Amazon.
Kind of don't like that it opens schrader valve and relies on the cap to keep air in. Anyone have any experience with these?!
Correction aftermarket TPMS, duh


Last edited by pcolapacker; Mar 12, 2021 at 09:54 PM. Reason: Spelling
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Old Mar 13, 2021 | 07:13 PM
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I hated the TPMS when it was Federally mandated in 2007. I cursed Ford, Firestone, Explorers, for the whole ordeal !! It was especially irritating when customers would complain on tire pressures being off by 2psi, or off from side ti side, or ask about why the pressures would change while driving, or sitting in the sun on one side.Or come back right after you had set the pressures after driving around the block and complain why all pressures don't match "something must be wrong with the TPMS" !!.. And then the "actual" TPMS problems..

But through the years as people have learned about "tire pressures" lol ..and TPMS/people in general it has gotten a lot less irritating and I have seen the benefits of the system.. It really is a great safety feature.keeping from having blowouts at high speed due to low air pressure that can happen overnight, or even on a road trip.

And for tightwads who will run plugs in used tires, it will save hundreds of dollars in keeping from ruining the used tire when a nail punches in and causes a " leak"....

ITM is a German based company who makes many TPMS products, from OEM replacement type pre-programmed or programmable Sensors, and Aftermarket Systems in Bluetooth and WIFI, 315mhz and 433mhz, with several types display from Phone apps, to GPS Displays, rear view mirror displays, cigarette lighter displays, HUD displays, ect..

The ITM stuff is also sold under WURTH brand (German), and The Wheel Group, CUB Products, and others and is good quality stuff.

Bluetooth Sensor types can also be displayed on an Android head unit, which would be cool.

I have the Tire-insight retro kit that uses OEM type internal sensors with Aluminum tire valve stems, and a GPS display monitor used on Sally (99 C2 Coupe)

I have the ITM Bluetooth "external "Senors that uses the Phone App display for Sarah (99 C2 Cab). They are a bit heavy hanging on the end of the valve stem, they weigh, .35oz each, so metal valve stems are needed and re-balancing is also needed..

So to wrap it up, I really like TPMS that shows actual pressures !!! ! I'm also old and cranky and lazyer and don't want to check tire pressures..

Last edited by Porschetech3; Mar 13, 2021 at 07:37 PM.
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Old Mar 13, 2021 | 09:43 PM
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Thanks Porschetech3. With 18 inch rims, a low tire does not jump out to you. Will look at the ones you mentioned.
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Old Mar 24, 2021 | 12:38 AM
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Default Update

Bought the TPMS pictured above and put on last week. Works fine. No leakage around cap that I was concerned about.
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Old Mar 24, 2021 | 01:32 AM
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Looks interesting. But watch out for balance issues with those.

My valves are very shallow. So I picked up a set of aluminum valve extensions. I thought I’d be smart and leave them on to help check pressures in the future. They were so small and light, I thought - no problem! But I immediately noticed vibration from the extensions. Took them off and problem solved. I guess they will be useful when checking pressure, but don’t leave them on!
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Old Mar 24, 2021 | 10:22 AM
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I weighed my external TPMS sensors, they weigh .35oz each, that's enough to get a little vibration. But the good news is you don't have to do a complete re-balance if you are in balance beforehand, just add .35oz stick-on weight to the opposite side of the wheel 180* from the valve stem.
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Old Mar 24, 2021 | 11:53 AM
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Originally Posted by Porschetech3
I weighed my external TPMS sensors, they weigh .35oz each, that's enough to get a little vibration. But the good news is you don't have to do a complete re-balance if you are in balance beforehand, just add .35oz stick-on weight to the opposite side of the wheel 180* from the valve stem.
These are 8 grams which is about the same as yours. Will do.
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Old Feb 16, 2022 | 06:12 PM
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Originally Posted by Porschetech3
I hated the TPMS when it was Federally mandated in 2007. I cursed Ford, Firestone, Explorers, for the whole ordeal !! It was especially irritating when customers would complain on tire pressures being off by 2psi, or off from side ti side, or ask about why the pressures would change while driving, or sitting in the sun on one side.Or come back right after you had set the pressures after driving around the block and complain why all pressures don't match "something must be wrong with the TPMS" !!.. And then the "actual" TPMS problems..

But through the years as people have learned about "tire pressures" lol ..and TPMS/people in general it has gotten a lot less irritating and I have seen the benefits of the system.. It really is a great safety feature.keeping from having blowouts at high speed due to low air pressure that can happen overnight, or even on a road trip.

And for tightwads who will run plugs in used tires, it will save hundreds of dollars in keeping from ruining the used tire when a nail punches in and causes a " leak"....

ITM is a German based company who makes many TPMS products, from OEM replacement type pre-programmed or programmable Sensors, and Aftermarket Systems in Bluetooth and WIFI, 315mhz and 433mhz, with several types display from Phone apps, to GPS Displays, rear view mirror displays, cigarette lighter displays, HUD displays, ect..

The ITM stuff is also sold under WURTH brand (German), and The Wheel Group, CUB Products, and others and is good quality stuff.

Bluetooth Sensor types can also be displayed on an Android head unit, which would be cool.

I have the Tire-insight retro kit that uses OEM type internal sensors with Aluminum tire valve stems, and a GPS display monitor used on Sally (99 C2 Coupe)

I have the ITM Bluetooth "external "Senors that uses the Phone App display for Sarah (99 C2 Cab). They are a bit heavy hanging on the end of the valve stem, they weigh, .35oz each, so metal valve stems are needed and re-balancing is also needed..

So to wrap it up, I really like TPMS that shows actual pressures !!! ! I'm also old and cranky and lazyer and don't want to check tire pressures..
Hello, I am about to pull the trigger on a TPMS set for my new APEX forged wheels (on the way), can I confirm which one you would recommend? The tire insight kit, or the ITM? Thanks so much!
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Old Feb 17, 2022 | 01:24 AM
  #9  
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Originally Posted by Ratchet1025
Hello, I am about to pull the trigger on a TPMS set for my new APEX forged wheels (on the way), can I confirm which one you would recommend? The tire insight kit, or the ITM? Thanks so much!
@Ratchet1025 one word of caution when buying a TPMS retrofit kit, make sure the TPMS Sensors are FRESH !! (date code)

There are many of the TPMS kits that have been sitting on the shelf for many years and the sensor batteries are dead or are fixing to be. And buying the correct replacement Sensors can be quite difficult since places like ITM makes a large variety of sensors for all manufactures and they use different protocols. I have seen the $600 kits selling for $30, so you know the batteries are dead...lol

The ITM kit and the Tyre-Insite kit are the same kit, different name.

At this time I would recommend you buy the Schrader Retro-kit #SCHRFK45 or #9053 , they are a reputable company who have been in business as long as I can remember, who also list the correct replacement Sensor # 29015, but please check the date code on the Sensors..



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Old Feb 17, 2022 | 08:43 AM
  #10  
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Originally Posted by Porschetech3
@Ratchet1025 one word of caution when buying a TPMS retrofit kit, make sure the TPMS Sensors are FRESH !! (date code)

There are many of the TPMS kits that have been sitting on the shelf for many years and the sensor batteries are dead or are fixing to be. And buying the correct replacement Sensors can be quite difficult since places like ITM makes a large variety of sensors for all manufactures and they use different protocols. I have seen the $600 kits selling for $30, so you know the batteries are dead...lol

The ITM kit and the Tyre-Insite kit are the same kit, different name.

At this time I would recommend you buy the Schrader Retro-kit #SCHRFK45 or #9053 , they are a reputable company who have been in business as long as I can remember, who also list the correct replacement Sensor # 29015, but please check the date code on the Sensors..
Big thanks PT3!
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