They are upgraded bolts.
I believe it goes ARP 8740, ARP 2000 and ARP 625+, 625+ being the strongest and more expensive.
I am sure you will be fine with the standard bolt.
Too much issues with probe.
Yeah yeah, blah blah blah about grinding down the tops.
If you don't have good enough quality control to fix that issue that has been around for a long time no, there is no reason to buy your product.
CP, JE or Weisco as Hvyman said will get it done.
I like CP...
Looks like a tuning issue. I knoe Cajun Kenny is experienced with the MAFT Pro, you should send him a PM. He tunes it himself and is still active on the forums.
Have you checked codes?
Those are my JZA70 connectors. Looks like Soarer ones to me. If nobody verifies by later tonight, when I get home I will check.
You need to search a little harder my friend. Go to the 1JZ section and it is stickied there.
Google works too. Let me explain.
Go to Google. In the search box type in "1JZ Swap Supra."
Let's break it down. "1JZ Swap" is what you want to do and since these motors are invading engine bays...
Post pictures of the harness connectors that go to the ECU and the ECU connectors. Make sure they're good pictures and we will tell you. The only way they can be messed up is if you used a JZA70 wiring diagram and the harness is a Soarer or something equivalent to that since you did have to...
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