5/18/2023 0 Comments Etuner wrxThey do their own designed exhausts, as well as wheels. Ultrex are Western Australia based and are great to deal with. Turbo Back Exhaust (TBE) Ultrex Full Stainless Steel WRX MY11-MY14 Quad Tip Exhaust (Modified) Here's a quick sketch up of how the the acceleration has been smoothed out for the pedal input - the aftermarket eTune provides a much more natural pedal feel. I believe the OEM configuration is to give new drivers the 'perky' engine feel without having to put your foot down, when all it's really doing is tricking them with this type of configuration via the drive by wire (DBW). Instead of the OEM mapping where the throttle curve is touchy with minimal input, the throttle is much more progressive and natural, it makes first gear much more smoother. Performance wise, there was a boost in torque, but the main benefit I felt was the remapped throttle position. For those that don't intend to do much with the vehicle, definitely try this first - but for those that plan to get to an upgraded turbo quickly, or have had plenty of time driving a remapped ECU in another vehicle, definitely skip this one. This was the first modification I wanted to perform, but it is mainly done to satisfy my curiosity, and to get a complete comparison between the upgrade steps. All tuning on my vehicle has been performed via eTune by Eric. The Forester specific tuning will have to be a 'custom' map with a minimal additional cost - but it's well worth the money as he's really prompt with his replies (within 24 hours) - and this is very important since you'll be doing 2-4 runs with him per map to lock down the final verison. The exhaust is arguably an exception, it doesn't gain much power, but it eliminates any airflow bottlenecks, and I also just wanted my baby to sound nice!Įric from TorquedPerformance is a very good eTuner with a nice, and well-priced, collection of preconfigured WRX ECU maps on his website. ![]() The modifications I have made to the vehicle have been prioritised based on the highest power-gain-vs-cost. ![]() Those that get eTuned on 98 Octane fuel or higher should get better numbers if everything is installed and functioning correctly. I've also tuned for 95 Octane Fuel, but outside of tuning periods I always run 98 Octane Fuel for an extra level of 'safety'. I was specifically after a relatively safe tune throughout the entire process, I'd rather lose a few horses for engine safety, than gain a few by increasing the risk to the engine's life. And being a cheap second hand deal, it makes for a very attractive purchase. The fact that the engine comes with a turbo from the factory means its been braced to handle a bit more power easily. ![]() The Forester SH is a modern looking car with high practical capabilities, mainly being large cargo space when all seats are folded down, for a car of it's small SUV size.
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