Just FYI the Boss Torsen is also a T2R
I'm not sure the semantics make any difference in the end but Torsen seems to differentiate between the T2 and T2R. In addition to the link I provided in post #4 Torsen also differentiates them in the attached
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Just FYI the Boss Torsen is also a T2R
Should get a tune with the LTH
And I think the Airaid is better then the JLT from what I have seen
I'm not sure the semantics make any difference in the end but Torsen seems to differentiate between the T2 and T2R. In addition to the link I provided in post #4 Torsen also differentiates them in the attached
Don't know if you've solved your dilemma yet or not . . . NJMP is my home track. Or will be back to being my home track once I get the car back to being ready for it.Coz, I see you are in my area so if you know NJMP you know what I mean. On both Lightning and Thunderbolt main straights I am needing 5th gear at half to 3/4 length which really kills the acceleration. Same thing happens at Pocono (probably can't prevent that one) and on the fastest hillclimb I run in Reading which again kills progress. So if I can stay in 4th I will be in a much better position when it comes time to brake. I don't remember going down to 2nd so I don't think that's an issue.
As for the T2R, maybe I am not understanding the bias difference between the Boss Torsen and the FR500 but additional torque to the weighted tire sounds like a better traction situation, especially with a 315 width. But if my interpretation is off please weigh in.
Don't know if you've solved your dilemma yet or not