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EGJOE
06-07-2008, 07:29 AM
Straight pipe system versus Muffled system :confused:


I'm not sure if this has been covered before :(

The local law around where I live is starting to clamp down on modded cars im thinking of changing my system to a quieter on but I'm concerned with power output being affected. I love the sound of my system I have at the moment but it really really loud.

I am running a 98'JDM B18CR. It would be helpful if I could get some power figures from owners of ITR motors with different exhaust sytem combinations.
I tend to lean towards straight pipe style producing more power, hope someone proves me wrong.

EXAMPLE
say a Buddy club version 3 versus a FUJI Rmo1

Will the later effect power outputs even though same pipe diameter?


I'm not sure if this has been covered before

Any help appreciated :thumbsup:
EGJOE
markoJEK1
06-07-2008, 08:23 AM
I'd say it might get affected a little, with a system like the RM01A (which Im running currently) as it does have 2 resonators after the cat, as where the straight pipe style would not. Its the quality of the exhaust that will play the role of how much airflow comes through, ie the type of filtration system in the resonators / muffler. One of the main things people forget to do is to get a decent metal cat (Im running Xforce metal cat), which is the main factor of 'power loss' in any setup, turbo or NA. Look at upgrading the cat, backed with a good quality cat-back system, and you shouldnt notice the change that dramatically. thats my 2 cents.
egSi
06-07-2008, 04:17 PM
i have a fuji RM01A on my hatch and its definately NOT quiet. i love it but its not quiet. i was expecting it to be before i installed it, but was wrong lol.

mugen twinloop maybe?
90LAN
06-07-2008, 04:26 PM
oem eg civic breeze exhaust will the best for your set up mate
i have it on my car flows heaps but dead quiet lol
ek4-guy
06-07-2008, 04:27 PM
i have a fuji RM01A on my hatch and its definately NOT quiet. i love it but its not quiet. i was expecting it to be before i installed it, but was wrong lol.

mugen twinloop maybe?

my RM01A is quiet with a jdm cat
egSi
06-07-2008, 05:54 PM
yeah darryl, i have a test pipe atm. i have a cat to go on, its just a matter of getting to the exhaust shop. i was hoping thats the reason its loud :zip:

i WANT a quiet exhaust :thumbsup:

lan, do u seriously have a breeze exhaust?
markoJEK1
06-07-2008, 06:02 PM
lan lies, hes got RM01A also haha
EGJOE
06-07-2008, 06:06 PM
yeh Lan just being a ozhomo as usual lol
egSi
06-07-2008, 06:30 PM
lol ok thought so. i thought i was the only one rolling a stock pee shooter and a swap lol

go RM01A then joe?
ek4-guy
06-07-2008, 06:37 PM
yeah darryl, i have a test pipe atm. i have a cat to go on, its just a matter of getting to the exhaust shop. i was hoping thats the reason its loud :zip:

i WANT a quiet exhaust :thumbsup:

lan, do u seriously have a breeze exhaust?

yeah i agree mine is a fair bit louder with my test pipe in
mr180sx
07-07-2008, 07:27 PM
RM01A will be way to quiet for Joe!!


lol ok thought so. i thought i was the only one rolling a stock pee shooter and a swap lol

go RM01A then joe?
egSi
07-07-2008, 08:58 PM
RM01A will be way to quiet for Joe!!

crap^ mine must be the only loud one. test pipes r shit lol :thumbdwn:
TODA AU
07-07-2008, 10:06 PM
RM01A will be way to quiet for Joe!!
LOL, only because he's got hearing damage from the exhaust he has now... :p
mr180sx
08-07-2008, 09:48 AM
hahaha, that is correct

Has your hearing recovered from the tune adrian



LOL, only because he's got hearing damage from the exhaust he has now... :p
shebangs
08-07-2008, 11:38 AM
Have you considered something custom? XForce have the VAREX range.

I'm far from recommending them. But my point is, you could go straight back into a Varex or better, and have the ability for loud and quiet. Obviously when it's quiet you won't be at full performance, but that could be a compromise.

It's not like the final muffler at the back changes performance that much. It's all in the cat, headers and diameter.
Alexx
08-07-2008, 12:10 PM
lol ok thought so. i thought i was the only one rolling a stock pee shooter and a swap lol


your not the only one :p -> swap + pee shooter represent

however, im looking to get a quiet system that frees it up a bit. Thinking 5zigin headers, x force metal cat, and mugen twinloop atm.

As joe said, the new laws are not very friendly to loud cars...
90LAN
08-07-2008, 12:20 PM
if your car is not oem
they can do u for anything
so your are stuffed either way
loud exhaust or quiet one
shebangs
08-07-2008, 12:31 PM
Stop pimping oem lan
90LAN
08-07-2008, 12:34 PM
Stop pimping oem lan

hahah just stating the obvious
EGJOE
08-07-2008, 03:36 PM
yeh lan a oem slut let me rephrase that a polished oem slut LOL:p
90LAN
08-07-2008, 03:44 PM
hahahah u know it
EG5
08-07-2008, 03:58 PM
ek4 axle back here i come LOL
EGJOE
08-07-2008, 04:09 PM
haha good luck buddy