Quote:
Originally Posted by NightEdition
So is an EL header absolutely needed or can you run a UEL on the 91 tune as well? I'm getting ready to swap the header and the plugs. If I have to go full HKS I will, just wondering if adding a different header would cause any chaos.
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Surprised you never got a reply yet. I ran UEL for many months and it was fine. You get more torque with UEL but sacrifice HP. And with that, you get more HP with EL but sacrifice Torque. I now have the HKS EL and I noticed a difference in the way the car accelerated for sure and enjoy the sound more. It's a smoother acceleration now in my car rather than seeming to pull at low rpm, drop mid rpm, and pull again at high rpm. None of this was dyno tested but obviously once you know your car you'll feel the changes even if they aren't massive numbers on a dyno.
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