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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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11-18-2013, 01:03 AM | #1 |
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EVO 3 Drone Solutions
Hi guys,
Reopening this topic. I have a Greddy evo 3 exhaust catback. I love the sound it makes I can't stand the drone anymore. I drove to SF this week from San Jose on 280 and there were alot of hills/incline area which cause the car to rev about 2500 causing high way drone... It really Pissed me Off. I am hoping someone on this forum has a solution/layout specific for Greddy evo 3 to make the drone better or go away. I have tired running the silences its awesome but then you can't hear the exhaust. I was thinking of buying the Invidia Resonator front pipe or HKS resonator front pipe... DO YOU GUYS THINK THIS WILL WORK? In addition, if i take out my CAT will and put in the resonator front pipe will it cause CEL to go on? Can I also just go wield on a Helmholtz Chamber to Reduce Drone? either front pipe stock or downpipe or exhaust? Thanks, -J |
11-18-2013, 01:32 AM | #2 |
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nameless catted over/frontpipe w/ Helmholtz?
Not layout specific and I don't own an evo 3 but if you want a Helmholtz you could try that. no cat in frontpipe doesn't change anything as far as CEL, the o2 sensors are all on the first cat.
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11-18-2013, 01:40 AM | #3 |
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dude, just get another catback like a Perrin, Ark, or something..
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11-18-2013, 01:42 AM | #4 |
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The time and money you'll likely spend modifying with unknown results you may be better off just getting a different catback? Guys here have evo 3 to I couldn't handle it personally.
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11-18-2013, 01:49 AM | #5 | |
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You might get lucky and cancel out the resonance but you are just as likely to amplify it. |
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11-18-2013, 02:59 AM | #6 |
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Any aftermarket front pipe will be much louder than the stock one so forget that idea. Your best option is to get a different cat-back and sell the EVO3 to someone who likes loud and obnoxious or doesn't know better.
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11-18-2013, 02:50 PM | #7 |
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put in the silencers? lol
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11-18-2013, 03:02 PM | #8 |
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Turbo kit is the only answer. I have no drone on my Evo 3. Call up my boy LJ @FullBlown for the solution.
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11-18-2013, 03:40 PM | #9 | |
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11-18-2013, 03:51 PM | #10 | |
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11-18-2013, 04:17 PM | #11 |
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Sound deaden the trunk.
Helped me with drone on my STI hatchback. |
11-19-2013, 01:52 AM | #12 |
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sound deadening under rear seat, on rear deck in where speakers would go in a normal car, and the fold-able part of the back seat. i did this and it was a substantial difference on the drone on my J2 system. i spent under 100 dollars and it was definitely well worth it. i also dynamatted the trunk lid and the trunk floor to help kill some resonance. (dynamat is not intended to block sound)
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11-19-2013, 02:44 AM | #13 |
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I'm curious if Greddy has been informed and aware to fix the drone in the Evo3 b/c there are a lot of complain from most forum owners. Evo 3 is a nice exhaust but Greddy need to revise & update for the better. Btw, I just can't stand why buy a perf cat back exhaust then cover it up w/ the silencer. what the hell/point ???
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11-19-2013, 06:37 AM | #14 | |
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To be fair, its designed to create the sound that it does, sensitivity to resonance is a personal thing and varies from person to person. Sent from my Nexus 5 using Tapatalk |
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