Welcome to Reische Performance Products! We are committed to providing the absolute best performing thermostats currently available for your Mustang. Also be sure to check out these other unique products offered by our alliance of partner vendors:
CobraBob's Shifter Gaskets
for late model
Mustang, Camaro/Firebird and GTO
Quality shifter gasket sets for a quieter shifter!
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Hilton Boost Overlay
for late model
Cobra and Lightning
Seamless, clear overlay installs over your stock boost gauge.
Read higher boost levels without an aftermarket gauge!
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| 170* PERFORMANCE THERMOSTAT (99-06 Mustang 4.6L 3V & 4V only)* |
$55.00 Shipped
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Many have scoured the internet and part stores in search of a properly fitting performance thermostat for our late model Cobras, Machs, Bullitts and 05-06 GTs. After an exhaustive search I decided to custom modify a stat to meet this demand because I was unable to find an aftermarket unit that had a bypass valve configuration compatible with the OEM unit available in a low temp version.
My performance stat utilizes the same high-flow diaphragm as the OEM unit along with an identical bypass valve. These units are meticulously assembled by hand using Stant parts and then welded back together for maximum strength. Every stat is inspected and tested to ensure consistent opening temps. The high cost is due to the fact that I have to purchase 2 thermostats to build one performance stat. Whether you are using an aftermarket radiator or not this stat will provide the best possible coolant temps and heat dissipation from your setup along with reduced warm up times when compared to a stat with holes drilled in the diaphragm.
Here you see the OEM thermostat from an ’03 Cobra (left) next to my performance stat (right) and how they respond to the same temperature water: MORE INFO

* Compatible with Motorcraft RT1110 & RT1168, does not fit 99-04 & 07-08 Mustang GT
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