Yes but , we have now different ratio 's to give the crossfire the boost or gain mileage we have a 2,87, 3.07, 3.27 3.66 and 3.90. I am offering the 3.90 at a reduced amount
of $995.00 for the TCU and the diff with 3.90 gears,, this can be swapped in about 2 hours ,,yes it is a bolt in. this set up in a limited will make it 1/4 second(on paper) slower than a srt6 where now it is about 1 full second slower than a srt6,,, I see post how to make a limited faster well this is it. My V8 with a 3.45 runs 10.55 @ 132,, with the stock 307 it ran 11.0 @ 121. and all your parts you remove ( the 3.27 diff and tcu(for auto) you can put back when you sell. For std shift crossfire I can do $800.00