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Go Back   REVscene Automotive Forum > Technical Discussion > Advanced Forced Induction & N/A Engine Tuning
Emission Control Valves, worth it? No? Emission Control Valves, worth it? No?
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Old 07-29-2014, 08:49 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, 04:36 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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I went to Saskatchewan once. 30min is all I need to know that I don't want to go back there.
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Old 07-30-2014, 06:14 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, 07:24 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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I went to Saskatchewan once. 30min is all I need to know that I don't want to go back there.
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Old 09-02-2014, 11:33 PM   #5
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Seems like a cleaner alternative to running a silencer in your muffler.
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Old 09-03-2014, 12:32 AM   #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, 03:51 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, 08:12 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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