The design of the steed looks more like an intake manifold. The distance from the end runner to where the turbo bolts on to the closest one is horrid and causes massive issues trying to tune it with the turbo surging all over the place.
Usually once you go Aux fueling and over 400whp an aftermarket manifold shows benefits, by then you should have a built motor with all the goodies on it for future proof. if you are stock block the OEM mani will make the exact same power as aftermarket as you will be tune limited so it doesn't blow up around the 370 on an e30 blend or a meth kit. 98 Fuel only then around 340whp no matter what manifold's you have on it.
If you want the car long term save the dollars for a built engine from Mitch 2NV, then you can add aux fueling and go over 400-800hp with ease with out worrying about it popping with turbo of choice.
Last edited by shaneski; 02-10-2021 at 10:25 PM.
MPS Gen 2 2012 - i think i have Ebola