stock BRF , mine at 130k gave up before reaching 11s (about 450hp), well actually the stock D5 converter gave up ,
dynotech recommends their street strip rebuild for 12.00 and slower and the hipro rebuild for 11.99 and faster (450hp+) ,better bands and clutches ,extra clutch plates , shift kit , billet servo, hardened drum and input and a bunch of other junk .
the other black car , built right , no billet parts, getting close to 650hp has been 1.30 off a stageright transbrake and sometimes i do use OD at WOT , so far so good
Grumpy is pushing in the neighborhood of 700hp with the 200-4r Russ built
whatever you have it's best to log your run and reveiw the rpm at the shift for signs of flare or excessive slipping , you may not feel it but DS will catch it , if it starts to flare it's time to take it in for service or lower the boost a bunch