it has loads of benefits for any car really. but the biggest thing I noticed with hydra and base maps with my 5spd is the smooth revs better matched the power transfer of the transaxle. The big change you felt when you switched to 5mt was prob pretty shocking and raw, well the hydra will take that power and manage it like it's never been managed before. It will feel cleaner through every rev. Each gear will feel cleaner than it's ever felt.
but the biggest question people are probably wondering is "Why should I get a Hydra?" or "What are the benefits to a hydra as opposed to a piggy back system like the ECUTune software?"
Here are your answers:
If you haven't heard about Hydra Nemesis, it's basically an access port on crack. It's a complete stand alone ECU. That's right it REPLACES the stock ECU from Subaru, and no you don't have to do any sort of wiring to get it to work just plug and play! Also it eliminates the need for a MAF, with the internal MAP sensor you are able to more accurately tune your car with no restrictions on power.
The amount of options with a Hydra are endless, it has additional maps like fuel trim vs coolant temp, or spark trim vs air temp. It can work with either high or low impedance injectors. you can change spark dwell time. You have control over the PID values for idle, as well as PI values for VVT control. no piggyback has VVT control yet. All fuel maps are adjustable at every RPM. You can customize for any type of fuel, and the list goes on and on. And unlike a piggy back system or most stock ECU's that you can tune such as in the WRX there are no limitations as to how many times you can alter your maps and you don't have to wait for a complete reflash to see the results of your changes.
On top of all that MSD and other ignition systems are not needed because the Hydra can tune more accurately all of those systems. The Hydra Nemesis has complete dwell control by voltage and rpm. When the dwell is set properly, the factory coils can handle most HP needs. Almost all your maps are available in both 2d and 3d which the stock ECU's are not capable of doing.
Anyone have any more questions feel free to post them, and Tom if you have anything more to add wouldn't mind some back up
