Sorry about that - his ID is Partsexporter.

Here is a link to one of the 451 version, Not 'A' or 'A2'. This one is for a manual tranny. However, if you contact him and he has one in stock, he will make a listing for you.

Partsexporter

If you don't want the 451A2, don't tell him you have a SRT - or he will try to push the 451A2 on you (because the manufacturer told him so).

If you do a search on the forum, there is a response from the manufacturer that says the 451A will function just fine with the SRT. The larger AMG cars (55's, etc) may throw engine lights with the 451A, so they made the 451A2. However, our cars (SRT6) are just fine with the 451A.

Hope this helps.
SQ