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I went as gradual and low end as I could. In Chicagoland, wanted to stay catted just in case.
First, I got an OFT. Stg 1 93 octane tune cut the dip down dramatically on its own. Car revved harder all over the tach too. Almost stopped here, as it was good enough.
Then, I came across a cheap used TopSpeed EL catted header. It's branded a UEL... Technically the runners aren't exactly the same length, but 90% close. They really aren't unequal enough to be one. I'm fine with this, didn't want the UEL rumble, even though UEL is supposed to help more with the dip. The cat is a small 200cfm high flow unit, way less restrictive than Oem. As far as headers go, this one is barely better than the Oem, BUT...
OFT stage 2 93oct + this low end header is great. dip is gone, car pulls cleanly from idle to redline and more power all over. Car isn't fast, but isn't slow anymore. Barely more volume than stock. Total spent is under 750, totally worth it.
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