Eldaveo Inactive Members 1 Member For: 13y 9m 21d Posted 01/01/11 08:03 AM Share Posted 01/01/11 08:03 AM Hey allJust wondering whether many people have used those electronic exhaust cutout/bypass valve thingos?How do they compare with a proper sports exhaust in terms of power output?How loud are they actually?Where they should be placed? before or after cat etcExhausts annoy me so any feedback would be greatly appreciated Link to comment Share on other sites More sharing options...
RegSpec Cruise Control 1,417 Member For: 17y 3m 22d Gender: Male Location: Macksville NSW. Posted 01/01/11 08:35 AM Share Posted 01/01/11 08:35 AM (edited) Hey allJust wondering whether many people have used those electronic exhaust cutout/bypass valve thingos?If its what Im thinking of....I think they were a gimmick originally intended for hot rods and stuff...How do they compare with a proper sports exhaust in terms of power output?Most modern engines need a proper system to work properly.How loud are they actually? In the open setting....bloody loud (they'd earn you a yellow sticker for sure)Where they should be placed? before or after cat etcAfter the cat I'd assume....Exhausts annoy me so any feedback would be greatly appreciated If exhaust noise bugs you....I wouldn't bother....you'll hate it. Edited 01/01/11 08:35 AM by BionicXR6T Link to comment Share on other sites More sharing options...
Panda Eyes flame magnet Gold Donating Members 5,673 Member For: 15y 11m 3d Gender: Male Location: adelaide hills- 'race air' central Posted 01/01/11 10:24 AM Share Posted 01/01/11 10:24 AM (edited) I think they are called varex? might be ok for the track but pretty much would sound like an exhaust with no muffler at all. Edited 01/01/11 10:25 AM by fordriver1 Link to comment Share on other sites More sharing options...
Maximus Member 1,627 Member For: 17y 1m 9d Gender: Male Location: Slip Sliding Away Posted 01/01/11 10:30 AM Share Posted 01/01/11 10:30 AM Only cars that should have them are V8's.Just like this one....... Dunno how they would work with the Turbo's though.You would need a tune for full exhaust and another for the cutouts yeah? Link to comment Share on other sites More sharing options...
Panda Eyes flame magnet Gold Donating Members 5,673 Member For: 15y 11m 3d Gender: Male Location: adelaide hills- 'race air' central Posted 01/01/11 10:35 AM Share Posted 01/01/11 10:35 AM its not just a sound thing though. surely more power would be made bypassing the mufflers? Link to comment Share on other sites More sharing options...
Wenier Donating Members 1,736 Member For: 14y 3m 1d Gender: Male Location: Christchurch, New Zealand Posted 02/01/11 01:25 AM Share Posted 02/01/11 01:25 AM The ones I have seen are in the rear muffler and just allow it to pass straight through rather than through the baffling. Some subies have them standard and it is opened by a certain percentage of throttle. Link to comment Share on other sites More sharing options...
ZAP No boost, no bottle, just my foot on the throttle! Lifetime Members 7,935 Member For: 20y 2m 5d Gender: Male Location: Sydney Posted 02/01/11 03:33 AM Share Posted 02/01/11 03:33 AM The later BOSS and the new SC V8 FPV's all have the bimodal exhaust that opens up the exhaust went the RPM is over 4,000rpm.As for the bypass, I used to run a similar thing on my RT Charger when tracking it. It used a cable like the old choke that would divert the exhaust out behind the front door.Was more of a gimmick than practical as it often jammed and did not make much difference.As for performance, I doubt it would make a huge difference in comparision to a free flowing sports exhaust. Link to comment Share on other sites More sharing options...
j.d Member 1,222 Member For: 13y 8m 23d Gender: Male Location: Eastern Suburbs, Melbourne Posted 02/01/11 03:43 AM Share Posted 02/01/11 03:43 AM you mean something like this?? not a ford but sorta thing you were meaning ?? would it be worth doing it on a turbo engine though ??it would need to be in the tune but if you have a free flowing exhaust what would the difference be Link to comment Share on other sites More sharing options...
turbotrana Member 2,586 Member For: 21y 20d Gender: Male Posted 02/01/11 03:48 AM Share Posted 02/01/11 03:48 AM I would recommend them but use the one with a sliding valve in it as apparently it seals better than the one with a butterfly type valve.I have a 4" down pipe which splits into two 3" pipes. One pipe goes to the 3'' exhaust to the rear and the other is meant to be connected to one of these butterflys that can be programmed to open under boost. I just havent got around to connecting it completely but have made provision for it. The exhaust will dump just under the drivers seat.Go for it. You could use the original exhaust and just make a new downpipe to take advantage of the extra flow. Link to comment Share on other sites More sharing options...
M0XXX Member 7 Member For: 13y 6m 12d Gender: Male Posted 24/03/11 04:29 AM Share Posted 24/03/11 04:29 AM Could you post pics plz and where did you get the valve from? Link to comment Share on other sites More sharing options...
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