DSK Posted November 29, 2009 Share Posted November 29, 2009 (edited) My car currently has the following; Whifbitz UK spec double de-cat pipe kit Motoria stainless steel cat back exhaust system I use my car for motorwary journeys and prior to the de-cat with the Motoria s/s system it was actually OK but roared when you opened the throttle a decent amount so was justa bout right. Now that I have de-cats, the car is, for my liking, very loud especially when you are just pottering about as gently as you can around town. I would like to reduce the noise levels. Can fellow members please advise on an exhaust or setup that would shut it up? (I don't have an endless wallet). Youtube Video of my current exhaust at idle. Motoria Information; http://www.motoria.co.kr/viewproductfromgroup_3_e.html Edited November 30, 2009 by DSK (see edit history) Quote Link to comment Share on other sites More sharing options...
Kris H Posted November 29, 2009 Share Posted November 29, 2009 you can try a ECV from ApeX.. it works well on mine.. Quote Link to comment Share on other sites More sharing options...
DSK Posted November 29, 2009 Author Share Posted November 29, 2009 you can try a ECV from ApeX.. it works well on mine.. whats that? Quote Link to comment Share on other sites More sharing options...
Kris H Posted November 29, 2009 Share Posted November 29, 2009 http://www.nengun.com/apexi/exhaust-control-valve =) Quote Link to comment Share on other sites More sharing options...
Rinus Posted November 29, 2009 Share Posted November 29, 2009 Do you have a silencer in the rear pipe? Than you can make this pipe a bit longer, drill many 6mm holes in it and put some wool around it... Quote Link to comment Share on other sites More sharing options...
DSK Posted November 29, 2009 Author Share Posted November 29, 2009 I'm, not into drilling etc. Would rather look at options such as a replacement quieter exhaust. The ECV unit seems quite pricey for just a valve. I'd rather keep this as a last resort should I be unable to find a quiet exhaust system. Quote Link to comment Share on other sites More sharing options...
Konrad Posted November 29, 2009 Share Posted November 29, 2009 I'm, not into drilling etc. Would rather look at options such as a replacement quieter exhaust. The ECV unit seems quite pricey for just a valve. I'd rather keep this as a last resort should I be unable to find a quiet exhaust system. Tanabe Medallion is your choice if it comes to quiet exhaust. Quote Link to comment Share on other sites More sharing options...
DSK Posted November 29, 2009 Author Share Posted November 29, 2009 Tanabe Medallion is your choice if it comes to quiet exhaust. I'll add this to the list before I start to shop. I will be looking to get something around the end of January 2010, until then I will have to make do but it give me time to research for the correct replacement. Quote Link to comment Share on other sites More sharing options...
Guigsy Posted November 29, 2009 Share Posted November 29, 2009 the valve thing isnt for someone who wants a quiet exhaust all the time. thats when you want it quiet when your pulling out of there you live etc and then open it later. running the valve close all the time it just going to act at a restrictor ring or something. Its also going to increase your egts if you have it closed all the time. Quote Link to comment Share on other sites More sharing options...
DSK Posted November 29, 2009 Author Share Posted November 29, 2009 the valve thing isnt for someone who wants a quiet exhaust all the time. thats when you want it quiet when your pulling out of there you live etc and then open it later. running the valve close all the time it just going to act at a restrictor ring or something. Its also going to increase your egts if you have it closed all the time. and thats the whole point of de-cats as well in the first place hence why i am not keen on the valve ideal Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted November 29, 2009 Share Posted November 29, 2009 The ECV works quite well if you're just cruising about, and doesn't cause any problems with EGTs etc, as when closed or at least closed enough to quieten things, it won't allow you to boost. I have the same system, and i would quite like to quieten it down permanently, i did look into welding another absorption type silencer into it, but have not got around to it yet. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 29, 2009 Share Posted November 29, 2009 Tanabe Medallion Touring is the best quiet system I have come across, apart from stock. Quote Link to comment Share on other sites More sharing options...
DSK Posted November 29, 2009 Author Share Posted November 29, 2009 Thanks for suggesting the Tanabe item, this is what I found on youtube of the item fitted to a Supra TT; Seems about as quiet as I have ever known an s/s system to ever be. Quote Link to comment Share on other sites More sharing options...
Kirk Posted November 29, 2009 Share Posted November 29, 2009 What about a whifbitz twin box exhaust? Quote Link to comment Share on other sites More sharing options...
Lbm Posted November 29, 2009 Share Posted November 29, 2009 I'm a massive fan of my Blitz Nur Spec RX Quiet for cruising and pottering about, with a cheeky rasp if you get a bit excited. Quote Link to comment Share on other sites More sharing options...
JamieP Posted November 29, 2009 Share Posted November 29, 2009 What about a whifbitz twin box exhaust? Yup id go with that on a bpu car, very quiet even on a single turbo car. Quote Link to comment Share on other sites More sharing options...
DSK Posted November 29, 2009 Author Share Posted November 29, 2009 The Blitz RX was something I was interested in before, however i'm thinking a twin box may help add a bit of restriction to help gain some low end torque after BPU. Pauls wensite doesn't appear to be working at the moment, so can't see which he has on offer. Quote Link to comment Share on other sites More sharing options...
Kirk Posted November 29, 2009 Share Posted November 29, 2009 http://www.mkivsupra.net/vbb/showthread.php?t=200717 number 2 on the list Quote Link to comment Share on other sites More sharing options...
Nic Posted November 29, 2009 Share Posted November 29, 2009 These are the quietest cat back exhausts for the supra. Manufacturer's ratings are on a stock TT with cats still fitted, they'll all be a little louder with the cats removed. Stock Exhaust - 87Db Blitz NUR Touring (100% Stainless Steel) - 88Db Blitz NUR RX (100% Stainless Steel) - 91Db GReddy Ti-R (100% Titanium) - 92Db Tanabe Touring (?) - 92Db Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted November 29, 2009 Share Posted November 29, 2009 (edited) The Blitz RX was something I was interested in before, however i'm thinking a twin box may help add a bit of restriction to help gain some low end torque after BPU. Pauls wensite doesn't appear to be working at the moment, so can't see which he has on offer. The Nur spec RX will give more restriction that the Whifbitz twin box system for the TT (3"). That's been proved on my car, which wouldn't hold 1.4 bar boost (single turbo) with the Blitz unit. Replacing my exhaust for the Whifbitz one made a huge difference, and now it pulls 1.4 bar from 4kRPMish to the redline. Edited November 29, 2009 by Gaz6002 (see edit history) Quote Link to comment Share on other sites More sharing options...
nigelboyne Posted November 29, 2009 Share Posted November 29, 2009 my hks racing is very loud sounds like a v8 muscle car at low speeds. would like a quiter option on the motorway it settles down.do you loose power with the quiter exhaust Quote Link to comment Share on other sites More sharing options...
downimpact Posted November 29, 2009 Share Posted November 29, 2009 These are the quietest cat back exhausts for the supra. Manufacturer's ratings are on a stock TT with cats still fitted, they'll all be a little louder with the cats removed. Stock Exhaust - 87Db Blitz NUR Touring (100% Stainless Steel) - 88Db Blitz NUR RX (100% Stainless Steel) - 91Db GReddy Ti-R (100% Titanium) - 92Db Tanabe Touring (?) - 92Db Out of these quiet options which would weigh the least? Any ideas? Quote Link to comment Share on other sites More sharing options...
Guest tboy42 Posted November 29, 2009 Share Posted November 29, 2009 If you want less noise you should buy a clio 1.1:p Quote Link to comment Share on other sites More sharing options...
Wez Posted November 29, 2009 Share Posted November 29, 2009 Tanabe Medallion is your choice if it comes to quiet exhaust. Great exhaust, I use one on my track car Quote Link to comment Share on other sites More sharing options...
DSK Posted November 29, 2009 Author Share Posted November 29, 2009 If you want less noise you should buy a clio 1.1:p I lovbe hearing the car as its driven by someone else, but it is beyond stupidly loud. It can be heard for a shocking distance, great in making other traffic around you aware that you are there. Everyone thinks you're on it when I'm not which then leads to evry f*cking muppet wanting a pop (of course I won't let the Supra down, so conditions permitting I reluctantly have to give it a boot full). Thanks for the sugesstions chaps. I will email Paul in the morning. Quote Link to comment Share on other sites More sharing options...
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