B.L.Z.BUB Posted June 15, 2010 Report Share Posted June 15, 2010 Hey guys. Just got my exhaust done on my ksev and it sounds great. The only issue is I am having a problem with the boot amplifying the exhaust noise inside the car. Would filling the rear backrest with some kind of foam along with covering other solid surfaces inside the boot help? Or a solid piece of mdf between the cabin and boot. Lining the boot with carpet including the boot lid? All of the above? Any ideas would be appreciated as always. Dynamat? Cheers Reed Quote Link to comment Share on other sites More sharing options...
7shades Posted June 15, 2010 Report Share Posted June 15, 2010 Where does the tailpipe actually exit? Quote Link to comment Share on other sites More sharing options...
B.L.Z.BUB Posted June 15, 2010 Author Report Share Posted June 15, 2010 Hope that helps Quote Link to comment Share on other sites More sharing options...
7shades Posted June 15, 2010 Report Share Posted June 15, 2010 Please tell me there's a primary muffler and resonator further up the system that I can't see in the pics, or I will be forced to post a facepalm picture in your thread. You'll probably find the cannon and dumpy tip are to blame... Dumpies stop exhaust noise travelling as far (outside the car) but have the exact opposite effect inside the cabin. Also, straight through cannons (like that one, which looks like one of the $90 Trademe ones) suck, do nothing, and on small engines act as self contained echo chambers. Quote Link to comment Share on other sites More sharing options...
Johno Posted June 15, 2010 Report Share Posted June 15, 2010 (edited) If you want, insead of getting a sheet of MDF, get a big thick peice of house insulation and staple it to the bcak seats or just get a loud stereo to drown out the noise :P Edited June 15, 2010 by Johno Quote Link to comment Share on other sites More sharing options...
Evan G Posted June 15, 2010 Report Share Posted June 15, 2010 your running a glass packed straight through muffler and a canon? problem solverd Quote Link to comment Share on other sites More sharing options...
rob83ke70 Posted June 15, 2010 Report Share Posted June 15, 2010 I've got too big of a rear muffler and tip and I'm going down the path of putting a more appropriate size muffler and some different bits in the exhaust to get rid of the loud drone and reverberation. I like 2" tips on corollas lol. Robert. Quote Link to comment Share on other sites More sharing options...
7shades Posted June 15, 2010 Report Share Posted June 15, 2010 I've got too big of a rear muffler and tip and I'm going down the path of putting a more appropriate size muffler and some different bits in the exhaust to get rid of the loud drone and reverberation. I like 2" tips on corollas lol. Robert. 2" is perfect, lukey mufflers sound sweet, and a resonator is a MUST. Quote Link to comment Share on other sites More sharing options...
B.L.Z.BUB Posted June 15, 2010 Author Report Share Posted June 15, 2010 Has a resonator. Quote Link to comment Share on other sites More sharing options...
mungi mods Posted June 15, 2010 Report Share Posted June 15, 2010 i should put a hotdog in further up the system , letme know, it will quieten it down slightly , be like mine Quote Link to comment Share on other sites More sharing options...
B.L.Z.BUB Posted June 15, 2010 Author Report Share Posted June 15, 2010 Yeah that may help. It sounds good outside though. Ill try pad out my rear seats. Quote Link to comment Share on other sites More sharing options...
Evan G Posted June 15, 2010 Report Share Posted June 15, 2010 one thing ive learnt is fix the problem instead of trying to cover it. example dynamat = $200ish?, centre muffler/hotdog = $150? Quote Link to comment Share on other sites More sharing options...
rob83ke70 Posted June 15, 2010 Report Share Posted June 15, 2010 (edited) lol evan g I wish used car departments would understand that - going back a few jobs now, I found myself fitting a $150ish "universal" power aerial to a car to replace the oem power aerial that had broken, which was $300-400ish. it took me about 5 times as long and the result was by no means satisfactory.... would have been cheaper to buy the oem part!!! going back to the original issue - it can sound really sweet without having to be loud.... I'm putting the longest perforated tube resonator I can fit under mine and a 2" straight through perforated tube muffler with a 2" tip - it will be loud, but not too loud.... or so I'm hoping anyway! a big tip will always make it "boomy" and resonate too! Robert. Edited June 15, 2010 by rob83ke70 Quote Link to comment Share on other sites More sharing options...
Evan G Posted June 15, 2010 Report Share Posted June 15, 2010 lol evan g I wish used car departments would understand that - going back a few jobs now, I found myself fitting a $150ish "universal" power aerial to a car to replace the oem power aerial that had broken, which was $300-400ish. it took me about 5 times as long and the result was by no means satisfactory.... would have been cheaper to buy the oem part!!!Robert. i also work in a dealership. thats why I'm trying to give the rollaclub "do it right the first time" approach LOL used cars = spend the least amount of money and demand the most Quote Link to comment Share on other sites More sharing options...
Felix Posted June 15, 2010 Report Share Posted June 15, 2010 Probably just the cannon to blame. Reverse flow mufflers are the way to go, don't even need a resonator. Quote Link to comment Share on other sites More sharing options...
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