1 Does the 1700 suffer the same decel popping as the 1600 does (I would assume it would and possibly be even worst)
Mine didn't. I bought the 1600, ran it with stock pipes then tors, tried tors tune with stock pipes too. Nothing removed the popping. Got the 1700 kit installed and it hasn't popped more than 5% as much as it did as a 1600 since. I have tried the 1700 with both stock pipes and short tors. Hardly any popping. Now running custom tune with 02 sensors removed, still almost no popping.
2 Has Triumpth's tors tunes for the thunderbird gotten any better since they were first released to perhaps cure the above problem
Not that i'm aware of
3 Is there any actual real world improvement in performance with these pipes or is it really more about sound
Short tors make a very considerable difference. When it was a 1600 it took the bike from where i didn't think i could be happy with the power to where i knew i could. Probably 6-8 HP and probably around that in torque too. Well worth it to say the least. Tone is nice too but not too loud. Had the long tors at first and they made ZERO difference in power and sounded nasally. From what i've heard from others they may have changed them and they are now better. But the ones i had at least were [email protected]
remember to get the proper tune with the pipes or they will actually cause a LOSS of power !
4 Quite off topic but I have read the 1700 when it comes std from the factory comes with a bigger cat than than 1600 has anyone else herd similar ???
I think thats BS, and would put money on that. The 1700 BB kit sure doesn't come with a bigger cat, that much i'm positive about.