# Duramin Express **URL:** \ **Category:** Shift518 Automotive\ **Created:** [May 5, 2011, 4:04pm UTC](https://forums.speedlife.net/t/duramin-express/258263 "2011-05-05T16:04:53Z")\ **Posts on this page:** 1\ **Showing post:** 31
**Author:** ![jdaniels](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jdaniels/32/6399_2.png) [@jdaniels](https://forums.speedlife.net/u/jdaniels)\ **Post date:** [May 6, 2011, 6:13am UTC](https://forums.speedlife.net/t/duramin-express/258263/31 "2011-05-06T06:13:50Z")
> [@Another email I received.](https://forums.speedlife.net/t/another-email-i-received/41983/9): > > My truck stock spiked at 28psi so not sure how that makes since. The block doesn’t go it at the valve anyway. It goes in at the end of the cooler. It still has the same effect as blocking the valve as it’s a sealed unit at that point. Spikes obviously aren’t the same as held boost, and stock it commands about 19psi peak on the LMM. It’s not that it wont do more boost than that, it’s just working harder because it has to overcome the leak. Who the fuck knows, the fast guys on DD are the ones that said it – not me. --- _[View the full topic](https://forums.speedlife.net/t/duramin-express/258263)._