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Go Back   REVscene Automotive Forum > Technical Discussion > Advanced Forced Induction & N/A Engine Tuning

Advanced Forced Induction & N/A Engine Tuning This forum is brought to you by Racing Greed in Port Coquitlam.
Supercharger vs Turbocharger vs NA? Hondata vs Megasquirt? 94oct vs 87oct? Through technical discussion, let's find out what will the best option for you...

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Old 07-29-2014, 07:49 PM   #1
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Emission Control Valves, worth it? No?

I've been looking at Butterfly styled mufflers and stumbled upon these

APEXi - Exhaust Control Valve - Nengun Performance

Has anyone used these before? Thoughts? Not worth it all together?
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Old 07-30-2014, 03:36 PM   #2
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Yeah they're not bad as long as it's mounted on properly. Has helped me quiet down my exhaust when I get home late at night so I don't wake up my neighbours.
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Old 07-30-2014, 05:14 PM   #3
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Do they ever lock up or anything? Get stuck on the closed or open?
Problems?
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Old 07-30-2014, 06:24 PM   #4
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Mine's worked fine so far, don't pull cable prior to installation, I suggest you mount it where the exhaust tucks higher.
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Old 09-02-2014, 10:33 PM   #5
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Seems like a cleaner alternative to running a silencer in your muffler.
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Old 09-02-2014, 11:32 PM   #6
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Why not go electric?

http://www.summitracing.com/int/sear...xhaust-cutouts
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Old 09-03-2014, 02:51 AM   #7
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From what I heard, electric can have more things go wrong vs. the manual hand ones.
Don't know about Quick Time brand though
I've decided to not go that way, unless i have a dedicated track car
cops will give you plenty of problems to deal with most likely?
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Old 09-07-2014, 07:12 PM   #8
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I would say it's worth it, picked up over 50whp just by bypassing the oem muffler. I used qtp cutout but the quality left much to be desired (this was 4-5 years ago maybe they have improved). Nice and quiet the 99% of the time and then when you want to have your dessert just open it up.
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