Rspected
Registered Member
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- Jul 6, 2018
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- Genesis Model Type
- 1G Genesis Sedan (2009-2014)
The HP gains will be minimal with just an air intake alone. Actually, without having a tune to compliment the upgrade, you will cause your vehicle to LOSE HP rather than gain it. The reason is that you will now be taking in much higher volumes of air without the ECU outputting a higher fuel/air ratio which will cause the vehicle to run leaner and thus you will lose power as a result. The manual battery reset will not solve the issue as the stock ECU will not be able to adjust the ratios high enough without a tuner manually changing the settings.
I actually had this happen on my old G35, where I had added every possible bolt on but hadn't gotten it tuned yet. The car was extremely sluggish and the whole time I thought I was gaining power, but it was all in my head. A stock G35 makes about 240hp to the wheels, well when I put my full bolt on G up on the dyno before the tune, I was shocked to see that I was making only 216hp to the wheels. Well, the tune fixed that right up. My air/fuel ratio was 22:1 before the tune with all the mods, but after the tune they took it down to about 13-14:1 and I saw gains from 216hp all the way up to 283hp to the wheels once it was tuned.
Long story short: if you do mods that open up the air volume the car takes in, make sure you get it tuned or you will have a reverse affect on power.
Edit: the intake WILL make the car SOUND louder and faster though, due to the increased air flow.
I actually had this happen on my old G35, where I had added every possible bolt on but hadn't gotten it tuned yet. The car was extremely sluggish and the whole time I thought I was gaining power, but it was all in my head. A stock G35 makes about 240hp to the wheels, well when I put my full bolt on G up on the dyno before the tune, I was shocked to see that I was making only 216hp to the wheels. Well, the tune fixed that right up. My air/fuel ratio was 22:1 before the tune with all the mods, but after the tune they took it down to about 13-14:1 and I saw gains from 216hp all the way up to 283hp to the wheels once it was tuned.
Long story short: if you do mods that open up the air volume the car takes in, make sure you get it tuned or you will have a reverse affect on power.
Edit: the intake WILL make the car SOUND louder and faster though, due to the increased air flow.
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