i hae the injen cai, and hks exhause...who thinks im gonna get rasp if i add dc's 421 headers? and how bad will it be? any suggestions...how do resonators work?

 

i have the hks muffler with custom piping, and my headers made it raspy.
my friend has injen cai, dc sports headers, and the same exhaust as me and his is pretty raspy too.
so, ya, your gonna be raspy lol.
but youll notice more pull.

 

a resonator is a piece of piping with sound absorbing properties to reduce noise. to put one on, they would have measure the resonator. cut a section of your mid-pipe and weld the resonator inplace.

 

actually it's not the header, it's the exhaust that made the rasp...not enough sound insulation to supress the sound now coming out...
You will need an 18-20" resonator to eliminate that rasp...or minimize it...the CAI will not have any effect on the rasp though...it gives the sound more out of the actual engine bay than anything

 

rasp = power

 

I got a secret weapon against rasp sitting at home, it is "guaranteed" to eliminate rasp. I am getting it put on on friday. I will update you guys. And i have a dc 4-2-1 header, so it should be comparable. DC doesn't really make a 4-2-1 header but i'll just call it that for simplicities sake.

 

secret weapon = extremely large resonater?

 

Nope it's actually extremely small, and cheap, whatever it is

 

a silencer that you put on on the end of the exhuast tip ?

 

Nope my friend tried that and it made it worse. Sorry no clues, i don't wanna say what it is until i know if it really does work or if it is a dud. I will give you all the details on friday after work, only 2 more days.

 

I wanna know what the secret weapon is . . .

 

sound absorbing wraps for the headers?

 

what i meant is that i didnt have any rasp until i put my headers on.
i had exhaust first

 

Belive it or not the rasp doesn't come directly from the header. The header is what causes it, but rasp is produced IN the midpipe. I have done a TON of research to see how to get rid off the rasp by finding out exactly what causes it.

Oh, and no, it's not sound absorbing wrap, really guys i'm not gonna say until it's on, just wait til tomorrow afternoon. And if it works, i will tell you every little detail about it, and if it doesn't work, i will tell you to beware and not to buy it.

 

good luck

 

guys i have the stock header, stock pipe, sp2 greedy exhaust with a injen cold air intake, i will like to buy the 4 to 1 dc headers... that can give me the rasp sound??? i will have to buy a resonator??? thanks

 

I will definately be watching for your results... as I have just recently installed a Megan racing header on my 06 tC and noticed a substanial rasp during acceleration.
I'm running an Injen CAI and an Injen CAT back SES exhaust. and would love to "tame" the rasp while still gaining the benefits of the header

 

u need a resonator

 

I know what it is! Ear plugs!

 

there is NO WAY to eliminate rasp... u can minimize it... i bought a 22 inch magnaflow resonator.. well... if u can do.. buy two big one.. two 18 if if it fits..