so here are some videos before and after i installed the zzp whisper resonater..its hard to tell from the video its true effects but believe me it WORKS...my car was so loud it was absolutly unbarable..my dad said he heard me when i was 6 blocks aways on some stretch of road...but in the 2 in car videos the diffference is u can actually hear the supercharger with the resonater vs. without it you can not..this product works...heres the video

reving without resonater
http://www.youtube.com/watch?v=qfRtIlS2qGc

in car without resonater
''''currently not working'''

in car with resonater
http://www.youtube.com/watch?v=Exp38ZzPPW8

fly by with resonater
http://www.youtube.com/watch?v=aPKfeBi5EE0

now it sounds perfect not to loud not to quite

 

do you notice any rattling?

see my thread
https://www.cobaltss.net/forums/2-0l-lsj-performance-tech-47/rattling-whisper-resonator-113886/

 

no thank god..ill let u know if i do...i wasnt impressed with the quality of the inside..it works well dont get me wrong..but they say its 100% no resistance but i cant see through it which means theres some resistance....still glad i bought it though

 

mine rattles some too...interesting

 

yeah not to cool when its 150 for a resonator... if it was 50 or even 75 ide say f**K it... but 150 bolders... ouch


and this is my second 150 mistake...WTF

yeah, your right theres gotta be some flow interupption...

 

hmm I was considering buying one but I dont want rattles...

 

hmmm i think its terrible that both of you are experiencing rattles and zzp wont correct it..i hope mine does not start to rattle or maybe i cant hear it over the tone of my muffler...either way try talkin to zoomer..i had an issue with something previously and he took care of it for me..you got to avoid talkin to the lady on the phone..she is not very helpful at all....

 

mine only rattles until i get on it once...I guess once it starts flowing (5-10 min), it just stops rattling ????? exhaust sounds great after the warm up though

 

isn't that pretty much normal though.. i thought alot o magnaflows do that too

 

X2...

 

Sorry it took so long to get back i just finished a 40 page internship paper blah..... My car with the resonator does experience a little different performance change i can tell mostly when shifting into second gear. And as far as the rattling i made sure the guy bent back my heat shield a little, i'm getting no rattle at all! unfortunately i needed to take out the vibrant resonator, but to be honest i love not attracting the wrong attention, and it totally took away the nasty rice sound. so i cant complain, and neither can the cops!

 

i've noticed that more people are describing it as a tinging or pinging noise comming from the resonator not a rattle... do you notice any of this? and are you running a cat beacause that has alot to do with it...


i was thinking of heat wraping it to muffle this sound... but that would be quite expensive as one roll is $50

 

What kind of performance change? Losing some tq on the high side of the revs?