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04-20-2015, 12:24 PM | #1 |
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Just how noticeable is OFT+OFH and stage 2 tune?
This is one of the most popular performance mods for our twins. I know w a 93 tune you can get close to around 190 whp, but how does that 30 extra hourses feel on our cars? Objectively it seems to add some more power, but how does it feel subjectively?
Can those who have these respond with your impressions? Thank you! |
04-20-2015, 12:39 PM | #2 |
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Noticeable. It makes the car more fun to drive in my opinion, but if you're expecting a FI type difference you will be thoroughly disappointed.
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04-20-2015, 01:26 PM | #3 |
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04-20-2015, 01:51 PM | #4 |
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04-20-2015, 02:01 PM | #5 |
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Yeah this
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04-20-2015, 02:10 PM | #6 |
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It's more like 20 whp. I think Shiv's baseline was 170 whp.
Where you'll immediately feel more power is in the torque dip. Once the tach crosses ~3700 RPM, you'll hear the difference in VVT tuning (sounds like valve clatter or rasp) and feel the extra pull. It's not like the midrange kick from a turbo, just a smoothing out of the torque dip. If you want the huge midrange of a turbo, you'll have to add one.
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04-20-2015, 02:36 PM | #7 |
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04-20-2015, 02:48 PM | #8 |
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Yeah it's more noticeable on EL tunes. I remember hearing it distinctly when I was running the stage 1 file. I can still hear it a bit on my current UEL stage 2 setup though.
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04-20-2015, 03:43 PM | #9 |
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I have an Invidia N1 cat-back and combined with the OFT/OFH it sounds amazing. The performance difference isn't that much in my opinion. It does seem to accelerate a bit better, and through 2nd-4th gears it opens up.
I will be getting my car dyno'ed soon with a couple of FRS to compare modifications and finally learn my gains, as one of the cars is stock. I'd buy the OFT/OFH and cat back just to change the sound and make it super sexy, which it is. -RyanG |
04-20-2015, 05:56 PM | #10 |
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04-20-2015, 06:03 PM | #11 |
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I installed the JDL UEL Catless header and reflashed to the 91 octane OFT tune (I only have access to 92 octane) and there's a noticeable difference where the torque dip used to be. I haven't got my car dynoed yet but it accelerates a lot better now and I can say I enjoy driving it even more now.
It sounds so mean now with my header back exhaust when I'm at WOT but pretty quiet (relatively speaking) when I'm just cruising. IMHO if you're not wanting to go FI then the OFT/OFH is a great option. The OFH header was one of my top choices but I couldn't pass up the JDL header.
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04-20-2015, 11:26 PM | #12 |
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NOOOOO!!!!! I got the OFH primarily to get rid of the rasp. Now you're saying it still exists with an UEL map? :/ Makes me wonder if I should even install it (currently sitting in my garage for another two weeks).
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04-20-2015, 11:31 PM | #13 |
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You probably can't even hear it over the sound of your header as you drive anyway. I could hear it distinctively when I was on the Stage 1 tune with my TRD catback. Now that I'm on the Stage 2 map with my OFH, I can hardly hear any intake noises over the sound of the UEL header.
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04-20-2015, 11:46 PM | #14 | |
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Quote:
Today when I was driving to work, I was driving in traffic and needed to change lanes to the empty one to my left. Signaled, downshifted and gassed it and felt that torque around 3-4k that I didn't have before. It brought a smile to my face and definitely made my morning a bit more entertaining. My advice would be to go in with small expectations, although there shouldn't be FI-type gains anyways. Just install the header and tune and drive like you normally would, and eventually, when you least expect it, you'd be pleasantly surprised with the results. |
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