Hey guys!
I wrote this in my sales thread on here but figured this may help clear up some issues as to what each part does.
Source for info -- I worked at SSP for 2 years
High Stall Torque Converter:
Allows you to get a higher RPM launch by holding the brake (it's set to 3,100rpm limit) so in general this is great for a launch but even better on forced induction applications. Higher revs = higher boost
that brings me to the next item;
Transmission Cooler:
The more power and higher launch, the higher the internal temps. This badboy from SSP does an amazing job of keeping the temps down. Having a cooler will definitely extend the life of the transmission also.
Valve Body Stage 1:
This is the main hub for the transmission. All the solenoids and valves are located here so for the Stage 1 upgrade, SSP has modified it to have 1st, 2nd and 3rd gears engage very aggressively. There's no "slip" engagement or smooth engagement, it grabs the next gear right away. Gears 4-6 remain as stock engagement.
This means red-line gear changes get right into the next gear, it's a HUGE difference and is very much like a DCT (twin-clutch) transmission. The gear changes are this hard no matter the RPM, so even cruising you get immediate engagement into the next gear.
Valve Body Stage II:
The stage II adds in the aggressive engagement for all gears (includes 4-6 also). So every gear will be instant engagement. This could be a little rough for daily driving but I'm someone that likes precision and no slop, even daily driving so this would be my choice along with the cooler
I hope this sums it up, if you need any further info please let me know. I'm always here to help in any way I can!
Cheers,
Jason