cl9 custom exhaust too raspy

[cris]

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.

[YER801]

Bump, im intrested in this

[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.

[Johnassan]

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

[xenonkuraz]

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.

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

[EKVTIR-T]

Either of these styles will reduce raspyness buzzyness while still flowing

[cris]

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?

[curtis265]

+1 mid muffler. probably getting one myself.


how would 2 resonators fare?

[eur011]

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.

[cris]

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