ARP stainless TRD header stud replacements

Last week I sent off an OEM head to exhaust manifold stud and a genuine TRD header stud. ARP responded with part numbers. These were purchased from summit racing.

The ARP stainless TRD header stud replacements and 12 point fasteners arrived today. Replaces the two studs for the sensor and the two studs that hold the runner. The head to exhaust manifold studs arrived as well but the broaches are a few mm longer than the OEM ones. Won't know fitment on those until I attempt installation.

These TRD stud replacements fit perfectly. Much stronger and nicer than the zinc coated mild steel ones that come with the headers, (comparison pic below). The zinc plated TRD studs were probably never meant for headers given how they corrode in no time.

The ARP stainless studs are expensive but they were designed to hold the head to the exhaust manifold. They are meant to withstand the heat as well as 18000 psi tensile strength - stronger than grade 8 steel. As an added bonus... they are gorgeous.

Part number in the pic below. The 304 stainless TRD headers are ceramic coated in 2000 degree satin grey ice from performance coatings in Washington. These along with the ARP studs will outlast the life of the vehicle.

 

Few years back... Looking for the proper length for the header studs. Do you recall what the length was. Have a set of DT shorty's, going to install, I might get a set of these ARP Studs.?
Thanks.

 

Good luck with the DT headers.
I just replaced mine with the OEM piece (2.7 motor) as the Thorley unit kept cracking. After re-welding twice, I pitched it and went back to the dark side.

Good luck.

 

Awesome! Hoping these are still avail. I installed some TRD headers and noticed the manifold studs are rusted out and wanting to replace them. Going to give these a try if they’re still available.

 

Update 3 years in the making. TRD headers finally installed by Torfab in Everett Washington.

They said the following ARP studs fit the TRD headers. I did not include the part number in my original post as I was worried the broach would be too long. Luckily they worked out! Of note, Torfab used remflex gaskets for the headers.

 

Pics installed: