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Post #1
 19th March 2011 - 05:29 PM
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I hate my exhaust because its so god damn loud on the highway with such a high monotonous drone. I sorted through the models and found the one I require. a 67mm inside diameter ECV. QUOTE The A'PEXi ECV (Exhaust Control Valve) allows you to control the loudness of your exhaust sound. The ECV is installed right after the catalytic converter, and adjustment of the valve is done through a cable run from the cockpit to the valve body. All you have to do is slide the lever installed in the car to get the appropriate sound. With the A'PEXi ECV you'll no longer need to get out of the car to fit a detachable silencer into the tail pipe. Strip up to 10dB off of the sound of your car with this ECV closed This unit is sandwiched between the flanges of your current exhaust and can be placed where you feel is most suitable (Between your Cat and Exhaust or Front Pipe and Cat.) Looking around they are about ~$150 - $200. I'm just wondering, has anyone tried one of these? 
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gutless
Post #4
QUOTE (sanchezz @ Mar 20 2011, 11:49 AM)  varex cannons are to easy to spot.. all you need is a switched on copper and you will be covered in fines.. my mate had one on his 33 a few years ago, it worked pretty good  fair enough. but what if his exhaust isnt too loud illegally, its just too loud to his liking in certain situations. if that is the case then the copper can do a DB test all he likes. |
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150 BAD
Post #7
I looked at these valves and ended up going a varex on my ute, and I love it, Its easy enough to hide, you can get the muffler replacements *i.e before the diff/midway down car*, not just cannon tips. No more highway drones for me! The Varex actually redirects the exhaust gasses through the muffler, the valve youve got pictured just blocks the exhaust, Varex is much more value. Granted more expensive, about 500 fitted, but youve spent this much on your S2K you dont wanna start skimping now do you. My ute which used to peak at about 105db is about standard volume with it closed, With the 6cyl camming away, it sounds like a worked v8 with a factory exhaust!!! |
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iamhappy46
Post #9
QUOTE (gutless @ Mar 20 2011, 12:51 PM) fair enough. but what if his exhaust isnt too loud illegally, its just too loud to his liking in certain situations. if that is the case then the copper can do a DB test all he likes. Since the EPA laws state that ANY sound limiting device has to be in the fully open position for a DB test, they can force you to have the Varex(or Apexi) in the fully open position. They are not 'illegal' but if your car is illegally loud on the fully open position, your fucked. One of my mates with an R33 got called in for a DB test, dropped the front of the cat converter down, filled it with half a roll of steel wool, done the test and passed by 3dB. Removed steel wool, kept the 'compliance notice from EPA in the car and cops left him alone after that haha OT: The Apexi one is good. The solenoid that drives it is high quality but the I have seen installed had no room for solenoid to fit between exhaust and the floorpan of car, it ended up being road rashed in a few weeks. |
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S2krazie
Post #11
Its not a matter of it being too loud for me, its matter of it being too loud in general & simply put - I hate it ; I always have, its just amazing I've never been pulled up for it other than when I first installed it about 3-4yrs ago. |
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S2krazie
Post #14
I don't want to go smaller, I can't. My power levels require me to run atleast a 2.75, perhaps even a 3". |
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150 BAD
Post #15
If you dont like the exhaust being loud at all perhaps you need to look at changing the exhaust system entirely to make it comply to your wants/needs. In my research on these flaps I found these had the worst feedback as all they do is block the exhaust, creating insane and unwanted backpressure in the system, A muffler has more flow than one of these. Also, with it closed, you'll notice severe power loss. |
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truffles
Post #16
QUOTE (150 BAD @ Mar 20 2011, 05:52 PM) If you dont like the exhaust being loud at all perhaps you need to look at changing the exhaust system entirely to make it comply to your wants/needs. In my research on these flaps I found these had the worst feedback as all they do is block the exhaust, creating insane and unwanted backpressure in the system, A muffler has more flow than one of these. Also, with it closed, you'll notice severe power loss. At the end of the day its your decision on what you want to come out of it with, but in my opinion if you want to be able to make it quiet for the popo/highway driving, and be able to open it back up again varex is the way to go. If you dont like it being loud at all, more mufflers Did you even read what Brad just said? His exhaust is fine for it's application, his car makes well over 400hp at the wheels. Of course it blocks the exhaust. What the hell do you think any of these variable products do? And of course it will give a power loss, as the airflow is restricted. But as he stated in his FIRST post; it's for when he's driving on a highway or just general cruising. This product does the same job as a varex and isn't gay like one. He's stated he'd prefer not to use one, so I don't get why everyone is telling him to. |
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150 BAD
Post #17
QUOTE (S2krazie @ Mar 20 2011, 05:35 PM) Its not a matter of it being too loud for me, its matter of it being too loud in general & simply put - I hate it ; I always have. QUOTE (truffles @ Mar 20 2011, 06:10 PM) Did you even read what Brad just said? His exhaust is fine for it's application, his car makes well over 400hp at the wheels. Of course it blocks the exhaust. What the hell do you think any of these variable products do? And of course it will give a power loss, as the airflow is restricted. But as he stated in his FIRST post; it's for when he's driving on a highway or just general cruising. This product does the same job as a varex and isn't gay like one. He's stated he'd prefer not to use one, so I don't get why everyone is telling him to. Yeah I did read it, did you?? it says to me hes always hated it being so loud in general... Do you know how the varex works? Yes they block the exhaust...to an extent, but that butterfly valve blocks the exhaust full stop. The varex blocks the straight through section and therefore redirects it through the muffler, not being a 100% block like the other one. I wouldnt go booting it with the varex closed, but ill sure as hell have that over that valve that only creates enormous pressure!! As I said earlier, each to their own. Cheap fix, that may well stress other parts to breaking point. Or done the right way, the first time.... |
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EUniqe
Post #18
I think the misconception here is that the Varex, unlike the Apexi butterfly valve, doesn't restrict the exhaust so much as muffle it. THe varex works by firstly, providing a narrower tube for the exhaust gases to travel through, supressing flow and thus volume, but it also muffles the sound due to it having to go through the muffler three more times, not just once. |
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truffles
Post #22
QUOTE (150 BAD @ Mar 20 2011, 07:40 PM) Yeah I did read it, did you?? it says to me hes always hated it being so loud in general... Do you know how the varex works? Yes they block the exhaust...to an extent, but that butterfly valve blocks the exhaust full stop. The varex blocks the straight through section and therefore redirects it through the muffler, not being a 100% block like the other one. I wouldnt go booting it with the varex closed, but ill sure as hell have that over that valve that only creates enormous pressure!! As I said earlier, each to their own. Cheap fix, that may well stress other parts to breaking point. Or done the right way, the first time.... Alright. We are on the same page. Apologies. |
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