cl9 custom exhaust too raspy

hey guys ive got headers and a hi flow cat, 2.25" single system with a resonator and a straight through sports muffler ( fiber filler perferatored mesh) on for a while now and between 3500rpm and 4500rpm it sounds raspy and fluttery. i drove it for a while and its now anoying me.

so i went back and the exhuast shop and they swapped it over to a glass filled muffler and a different brand, but its made it even worste.

does exhuast raspyness/ rice sound come from the resonators or the muffler?

any info would be helpfull so i can pass it on to my exahust shop so we can sort it out.

Bump, im intrested in this

You need a mid muffler to reduce the raspyness. A resonator on its own is not enough. Have a look at the Fujitsubo exhaust design for CL9. The mid muffler is there for that reason. Others exhausts without it like Skunk2 and J's Racing end up being raspy.

Interesting, I just purchased a CL9, il consider this when purchasing an exhaust.

Quote:

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Originally Posted by aaronng

You need a mid muffler to reduce the raspyness. A resonator on its own is not enough. Have a look at the Fujitsubo exhaust design for CL9. The mid muffler is there for that reason. Others exhausts without it like Skunk2 and J's Racing end up being raspy.

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exactly right. once i tested this and put two resonators in which only made the sound quieter but at higher rpms was still raspy.

i then removed the first resonator and put in a mid muffler and it sounded perfect.

the only other way is to add a turbo ;)

Either of these styles will reduce raspyness buzzyness while still flowing

http://www.cantonwearmaster.com/auto...ler-repair.jpg

http://us1.webpublications.com.au/st...4/1474_2lo.jpg

Thanks a lot for the reply. Might look at the mid muffler option. N if it fails I'll have to go one of those magnaflow mufflers

I've been told to try a Lukey muffler? Any experiance with one of them?

+1 mid muffler. probably getting one myself.


how would 2 resonators fare?

ive got 4-2-1 hears, 2.5" b pipe with 100cel cat, hi flow Lukey resonator, hi flow lukey dual mufflers. still raspy lol. if your keen we can meet up and u can hear it for ur self.

just realised your from brissy, i can try get a video up for u if you'd like.

Hey jhim yea if u don't mind that be good. Just so I can c what I'm up for