[Richard L]

The HFS-3 reads the meth flow after trigger. If the flow rate is outside the user specified window, the failsafe triggers.

Failsafe action will take place by the onboard relay: Cut one of the boost control valve (BCV) signal from the DME so it one turbo drops down to wastegate setting. In essence, the manifold will still hoovers above the wastegate setting. Alternatively the failsafe cuts the 12V supply to both BCV so both turbo is bypassed so boost pressure should drop donw to wastegate pressure.

I cannot say for certain how well this option works on the 335i because we have not tested this on the 335i. This is one of the options we will try out in the next few weeks. We are working on a few other options as we speak. It is imminent we will offer this to all 335i flash tune customers as soon as it is fully tested. At present, we cannot say too much.

This package will be offered by Jeff Howerton Engineering for the US marketm along side the bumper mounted bracket. I will ask him if he like to post some pictures of this bracket here. Jeff and I have been working on this 335i project for nearly 8 months. It will be a plug and play affair.

At present, until Cobb brings out a meth/race map on the stage 2, meths is only effective on bring the IAT down.