WOG BOY Posted March 4, 2008 Share Posted March 4, 2008 (edited) Getting a 3" Split Dump, Hi Flow Cat and 3" Catback with 4" or 5" Output/Muffler.....its stainless steel aswell if that has any effect.... Will this system be overly loud or does it depend on who makes the system? I cant see how one from Kakimoto or HKS or X Force or whatever can be any louder when they are the exact same size etc..... So can anyone let me know or answer my question/query and thought.... Cheers Matt Edited March 4, 2008 by WOG BOY Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/ Share on other sites More sharing options...
34GeeTeeTee Posted March 4, 2008 Share Posted March 4, 2008 Getting a 3" Split Dump, Hi Flow Cat and 3" Catback with 4" or 5" Output/Muffler.....Will this system be overly loud or does it depend on who makes the system? I cant see how one from Kakimoto or HKS or X Force or whatever can be any louder when they are the exact same size etc..... So can anyone let me know or answer my question/query and thought.... Cheers Matt I have a full 3" system on my 34 and it is legal db.... Its really quiet Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3692698 Share on other sites More sharing options...
**RB2530** Posted March 4, 2008 Share Posted March 4, 2008 In reality that question cannot be answered because there are quite a few different muffler designs (internal design) out there... I run a 3.5" to the cat. 3" inch cat, 3" resonator and 3" rear muffler with twin 2" outlets plus a 2 1/4" screamer** pipe off external gate going into a 2 1/4" straight through centre chamber muffler which dumps under the car just behind gear box... **I call it a 'moaner pipe'... Its very legal db until waste gate opens and then would be just slightly over but sounds like a V12... It really depends on what brand and design of muffler and resonator you use... Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3692729 Share on other sites More sharing options...
TTT Posted March 4, 2008 Share Posted March 4, 2008 it's all in the muff. get a centre muffler (not a resonator.. a muffler) between the cat and the rear muffler. that will keep it quiet. try not to use any cannon mufflers. Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3692816 Share on other sites More sharing options...
Modena Posted March 4, 2008 Share Posted March 4, 2008 Yeah canon mufflers suck... they are droiny and annoying. I am seeing alot of cars with twin canon muffler set up... less noisy. Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3692847 Share on other sites More sharing options...
TTT Posted March 4, 2008 Share Posted March 4, 2008 ^^ yeh but more rice Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3693207 Share on other sites More sharing options...
Proximity Motorsport Posted March 4, 2008 Share Posted March 4, 2008 noise will depend on things like wall thickness of metal aswell as type of metal. Different mufflers have differnt internal designes which will either muffle more or less than others. Best to go with high quality mufflers as they usually flow better and muffle more Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3693333 Share on other sites More sharing options...
R338OY Posted March 4, 2008 Share Posted March 4, 2008 I think the cat is important too. Something cheap and restrictive (like my current cat ) keeps it quiet. My mate has an X-Force turbo back exhaust and in the passenger seat (above the cat) it sounds like an aeroplane. My guess is the cat really affects the tone because it's the first restriction from the turbo. Look into a quality (metal) cat is my 2c Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3693344 Share on other sites More sharing options...
kuma j Posted March 4, 2008 Share Posted March 4, 2008 http://www.5zigen.com.au/aspec%20muffler.htm i got one of these from 5Zigen 3'' system which is within the legal limit. it gives it a nice crisp sound. Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3694700 Share on other sites More sharing options...
WOG BOY Posted March 4, 2008 Author Share Posted March 4, 2008 cheers guys....im gonna get it installed first....see how loud it is first then if i need to quiet it down ill put in a muffler part as GTST suggested! Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3694746 Share on other sites More sharing options...
EMZ R33 Posted March 4, 2008 Share Posted March 4, 2008 My R33 N/A 4 door series one sounds great. Great general driving sound, no drone, and when the foot hits the floor its sounds crisp and strong.....lovin it!! Ohhhh setup was conpleted at AAA Exhaust in Adelaide 2 1/4 inch from cat back to a 6" cannon muffler http://s21.photobucket.com/albums/b258/EMZ...nt=IMG_2523.jpg http://s21.photobucket.com/albums/b258/EMZ...nt=IMG_2533.jpg http://s21.photobucket.com/albums/b258/EMZ...nt=IMG_2524.jpg EMZ Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3694925 Share on other sites More sharing options...
Modena Posted March 4, 2008 Share Posted March 4, 2008 (edited) Quiet often a stock exhaust sounds way better than the drony piece of shit tin cans that some bolt on. I laugh every time I see some NA lancer or Mirage or Corolla or even a NA skyline/supra with a shitty canon up its arse.. they sound so loud and crap its embarassing and annoying. Edited March 4, 2008 by Modena Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3695314 Share on other sites More sharing options...
Marco-R34GTT Posted March 5, 2008 Share Posted March 5, 2008 Yeah canon mufflers suck... they are droiny and annoying. I am seeing alot of cars with twin canon muffler set up... less noisy. Any pics mate? I've been looking like mad for a twin pipe system... As far as I can tell, no one makes such a system for Skylines... Even just a twin muffler trick, I've not found a thing... Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3695462 Share on other sites More sharing options...
Modena Posted March 5, 2008 Share Posted March 5, 2008 Any pics mate?I've been looking like mad for a twin pipe system... As far as I can tell, no one makes such a system for Skylines... Even just a twin muffler trick, I've not found a thing... But they are for 200sx. I havent seen one for Skylines either unles its a custom job... been to Newcastle recently and saw many Skylines there with this set up. Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3695492 Share on other sites More sharing options...
TezGT-R Posted March 5, 2008 Share Posted March 5, 2008 Blitzn has a twin system from the cat back on his 33GTST, but I have no pics and he's to lazy to post them up. Its rediculously loud. Sounds awesome but probably not legal Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3695546 Share on other sites More sharing options...
R3Three Posted March 6, 2008 Share Posted March 6, 2008 Get a decent Japanese exhaust, trubo back zorst. Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3700708 Share on other sites More sharing options...
bombtrack Posted March 6, 2008 Share Posted March 6, 2008 If by chance you are buying an HKS system such as Silent Hi Power it should be fine. I can't recommend it high enough. I have it on my R34GTT and it is quiet at idle and has a beautiful note and volume under decent load. Sorry, have no idea about twin systems for Skyrines. Cheers. Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3700992 Share on other sites More sharing options...
R3Three Posted March 7, 2008 Share Posted March 7, 2008 Yeah HKS are quality brand. Link to comment https://www.sau.com.au/forums/topic/208872-exhaust-loudnessany-ideas/#findComment-3701354 Share on other sites More sharing options...
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