Supra786 Posted June 3, 2008 Share Posted June 3, 2008 Following on from my other thread: http://www.mkivsupra.net/vbb/showthread.php?t=151566&highlight=exhaust%3F I was thinking about getting this: http://cgi.ebay.co.uk/HKS-Hi-Power-409-Exhaust-Toyota-Supra-JZA80-2JZGE-NA_W0QQitemZ290189697767QQihZ019QQcategoryZ38786QQrdZ1QQssPageNameZWD1VQQcmdZViewItemQQ_trksidZp1638Q2em118Q2el1247 It seems a reasonable price and have been told its similar to the HKS Silent HiPower which is not worth the extra money. I have an NA and am fully decatted and need to seriously reduce the decibel levels because at the moment my exhaust is ridiculously loud and the neighbours are complaining. I need it to be quiet but have a roar when I put my foot down. So what do you all think would this be a good option? Quote Link to comment Share on other sites More sharing options...
Supra786 Posted June 3, 2008 Author Share Posted June 3, 2008 Can anyone help? Any NA guys have this? Quote Link to comment Share on other sites More sharing options...
toyotasupra1980 Posted June 3, 2008 Share Posted June 3, 2008 Can anyone help? Any NA guys have this? I got an Excess Power exhaust and its fully de-catted, I got the same problem, mine you can here a mile away, try and go easy on the accel pedel, try creaping at around 20mph, might be slow but atleast the noise level would have reduced, if i can do it and keep the noise down so the people dont say anything in my street, it should be ok for you. Quote Link to comment Share on other sites More sharing options...
colsoop Posted June 4, 2008 Share Posted June 4, 2008 I loked at the linm for the system on Ebay, i don't think that would cut much noise to be honest. Something like a Tanabe touring medallion is a quiet system but flows well. Have a search for quiet exhausts, im pretty sure Nic posted up a list of them. Quote Link to comment Share on other sites More sharing options...
Nic Posted June 4, 2008 Share Posted June 4, 2008 The HKS Hi Power is rated at 99Db on a stock NA (including cats) it will be quite a lot louder with the cats removed. The Hi-Power and Silents Hi-Power are basically the same, the Silent Hi-Power is 100% stainless steel the Hi-Power is mostly mild steel. In the UK I would personally spend the extra on a full stainless steel system. Hi-Power http://img50.imageshack.us/img50/4242/picture2vq5.png Silent Hi-Power http://img241.imageshack.us/img241/6497/picture1ph1.png Quote Link to comment Share on other sites More sharing options...
Nic Posted June 4, 2008 Share Posted June 4, 2008 Something like a Tanabe touring medallion is a quiet system but flows well. Have a search for quiet exhausts, im pretty sure Nic posted up a list of them. There isn't a Tanabe Touring Medallion specifically made for the NA, only the TT, so would be a lot louder on an NA. I'd personally choose an exhaust specifically designed for an NA, here is a list of the ones available. Blitz Realize-TT Blitz Realize-TTR HKS Hi-Power HKS Silent Hi-Power Kakimoto N1 Kakimoto R Fujitsubo Legalis R Quote Link to comment Share on other sites More sharing options...
Konrad Posted June 4, 2008 Share Posted June 4, 2008 There isn't a Tanabe Touring Medallion specifically made for the NA, only the TT, so would be a lot louder on an NA. I'd personally choose an exhaust specifically designed for an NA, here is a list of the ones available. Out of couriosity (sp?) what would cause Tanabe exhaust to be a lot louder, if basic difference in shape is first cat (decat) (which you could get seperately and connect rest of the system). Quote Link to comment Share on other sites More sharing options...
hoff Posted June 4, 2008 Share Posted June 4, 2008 The HKS Hi Power is rated at 99Db on a stock NA (including cats) it will be quite a lot louder with the cats removed. The Hi-Power and Silents Hi-Power are basically the same, the Silent Hi-Power is 100% stainless steel the Hi-Power is mostly mild steel. In the UK I would personally spend the extra on a full stainless steel system. Hi-Power http://img50.imageshack.us/img50/4242/picture2vq5.png Silent Hi-Power http://img241.imageshack.us/img241/6497/picture1ph1.png So thats the same for the silent too then Nic? Quote Link to comment Share on other sites More sharing options...
Nic Posted June 4, 2008 Share Posted June 4, 2008 Out of couriosity (sp?) what would cause Tanabe exhaust to be a lot louder, if basic difference in shape is first cat (decat) (which you could get seperately and connect rest of the system). The turbos quieted the exhaust note a lot. Quote Link to comment Share on other sites More sharing options...
Nic Posted June 4, 2008 Share Posted June 4, 2008 So thats the same for the silent too then Nic? Both are 99Db Quote Link to comment Share on other sites More sharing options...
Jay_vr6 Posted June 4, 2008 Share Posted June 4, 2008 to be honest if it's fully decatted i can't see any aftermarket exhaust making it noticeably quieter, unless your custom exhaust is made by powerflow and has no silencers at all. Quote Link to comment Share on other sites More sharing options...
Nic Posted June 4, 2008 Share Posted June 4, 2008 Another option would be to fit one of the following to reduce the noise when required. Apexi Exhaust Control Valve http://www.apexi.co.jp/products/exhaust/ecv/ecv_photo.jpg Or one of these that open as exhaust pressure builds. Apexi Active Tail Silencer http://www.apexi.co.jp/products/exhaust/ats/ats_1.jpg SARD Torque Control Valve http://www.sardracing.com/images/products/TCV.jpg http://www.sardracing.com/images/products/TCValve.jpg http://img508.imageshack.us/img508/94/3733um6.jpg Quote Link to comment Share on other sites More sharing options...
NeoMagic Posted June 4, 2008 Share Posted June 4, 2008 Stick a baffled de-cat in, that should shut it up. Quote Link to comment Share on other sites More sharing options...
supraspanner Posted June 4, 2008 Share Posted June 4, 2008 I have a tanabe Medallion on my N/A at it is very very quiet!!!! I would like it to be louder in fact. Although I still have the cats in, plus I think the whole exhaust system is a pic and mix!!! Standard manifold and downpipe with cats, centre section is powerflow i think and rear box as above. Will post pics if interested Quote Link to comment Share on other sites More sharing options...
Supra786 Posted June 11, 2008 Author Share Posted June 11, 2008 to be honest if it's fully decatted i can't see any aftermarket exhaust making it noticeably quieter. I was kind of getting this impression. I have a tanabe Medallion on my N/A at it is very very quiet!!!! I would like it to be louder in fact. Although I still have the cats in, plus I think the whole exhaust system is a pic and mix!!! Standard manifold and downpipe with cats, centre section is powerflow i think and rear box as above. Will post pics if interested The Tanabe medallion seems like the best solution other than that the Apexi Tail Silencer seems like the most cost effective solution. supraspanner are you looking to change your exhaust? If you are how much would you want for it? Nic where can I get one of these Apexi Active Tail Silencers than you, I know this is a bit chhecky but is there any UK suppliers as I know ordering from you would take a while. Thanks. Quote Link to comment Share on other sites More sharing options...
Supra786 Posted June 14, 2008 Author Share Posted June 14, 2008 Okay Have to really sort this out now and I have narrowed it to two options. 1. HKS Silent Hi Power with the Apexi Active Tail Silencer, due to this exhaust being specifically designed for the NA. OR 2. Tanabe Touring Medallion which is not designed for the NA supra. Fully decatted need to quieten exhaust. What do I do? Any suggestions? Will be placing order on monday, so any help much apprecited. Thanks Quote Link to comment Share on other sites More sharing options...
NeoMagic Posted June 14, 2008 Share Posted June 14, 2008 HKS Silent Hi Power Quote Link to comment Share on other sites More sharing options...
Supra786 Posted June 14, 2008 Author Share Posted June 14, 2008 HKS Silent Hi Power With or without the apexi active tail silencer, will it be quiet enough at start up? 2K RPM? Quote Link to comment Share on other sites More sharing options...
arvind8811 Posted June 14, 2008 Share Posted June 14, 2008 hi I got NA too, is the below exhaust any good? I'm thinking about changing my stock exhaust http://cgi.ebay.co.uk/Blitz-Nur-Spec-R-Toyota-Supra-JZA80-2JZ-GE-NA_W0QQitemZ110260742253QQihZ001QQcategoryZ38786QQssPageNameZWDVWQQrdZ1QQcmdZViewItem thanks in advance Quote Link to comment Share on other sites More sharing options...
Homer Posted June 14, 2008 Share Posted June 14, 2008 hi I got NA too, is the below exhaust any good? I'm thinking about changing my stock exhaust http://cgi.ebay.co.uk/Blitz-Nur-Spec-R-Toyota-Supra-JZA80-2JZ-GE-NA_W0QQitemZ110260742253QQihZ001QQcategoryZ38786QQssPageNameZWDVWQQrdZ1QQcmdZViewItem thanks in advance They are VERY loud on an NA, especially if decatted. The clearance isn't too good, but they do make a nice sound Whether it s a 'good exhaust' depends how long your neighbours are willing to put up with it and how many high rise speed bumps are in your area Quote Link to comment Share on other sites More sharing options...
dr_blackman Posted June 14, 2008 Share Posted June 14, 2008 I got a nur on my na and it sounds great, although I do usually have the baffle in it I use to use the car every morning at 2am, hence why I left the baffle in Quote Link to comment Share on other sites More sharing options...
Supra786 Posted June 14, 2008 Author Share Posted June 14, 2008 I got a nur on my na and it sounds great, although I do usually have the baffle in it I use to use the car every morning at 2am, hence why I left the baffle in Are you fully decatted? And how loud is it on start up? My main problem is starting my custom exhaust in the morning which is at 2K RPM and it is way too loud! Have to make a quick getaway. Quote Link to comment Share on other sites More sharing options...
dr_blackman Posted June 14, 2008 Share Posted June 14, 2008 No i've still got my cats installed, although I do have one of Nic's manifolds sitting in the box next to me Yeah it is rather loud on start up I use to make quick get aways in the early hours too... Never had a complaint though! I was doing that for over a year aswell Like i said I had the baffle in! Quote Link to comment Share on other sites More sharing options...
Supra786 Posted June 14, 2008 Author Share Posted June 14, 2008 No i've still got my cats installed, although I do have one of Nic's manifolds sitting in the box next to me Yeah it is rather loud on start up I use to make quick get aways in the early hours too... Never had a complaint though! I was doing that for over a year aswell Like i said I had the baffle in! Wait till you put the manifold on and if you take the second cat out your ears will be bleeding, when I start my car in the morning its like a jet has landed! Your lucky you haven't had a complaint I better change my exhaust quick before I literally take off. Oh and if you have second thoughts about the manifold, Im right here Quote Link to comment Share on other sites More sharing options...
dr_blackman Posted June 14, 2008 Share Posted June 14, 2008 lol sounds awesome I bet, but it does make u feel a prat so early in the morning If someone's interested in my car this next week and buys it i'll bear you in mind If not i'll keep the car if i'm taxing the bugger for a year Just thought i'd test the water! Quote Link to comment Share on other sites More sharing options...
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