Exhaust way too loud!!
#1
Exhaust way too loud!!
Asking anyone with experience in the matter how to qiet my exhuast down without going back to stock...
My rx8 was turbo. Too make a long story short my motor blew rebuilt my motor re-installed turbo turbo blew and now is na. I have intake, headers, racepipe, and catback. I kno thats why its so loud (ear piecering drone ftl!!!) but it was ok before i turboed it some years ago but i didnt have headers back then. Seems the headers make it super loud. I have the stock headers and midpipe with the cat coming apart. If i just swap the racepipe for the stock midpipe with gutted cat will that quit it down considerbly? If not i was thinking put the stock header back on and stock midpipe. Will i lose power gutted cat stock midpipe vs. racepipe? I have a agency power exhaust which is one of the louder ones for sure. Any info on the subject is appreciated, thanks..
My rx8 was turbo. Too make a long story short my motor blew rebuilt my motor re-installed turbo turbo blew and now is na. I have intake, headers, racepipe, and catback. I kno thats why its so loud (ear piecering drone ftl!!!) but it was ok before i turboed it some years ago but i didnt have headers back then. Seems the headers make it super loud. I have the stock headers and midpipe with the cat coming apart. If i just swap the racepipe for the stock midpipe with gutted cat will that quit it down considerbly? If not i was thinking put the stock header back on and stock midpipe. Will i lose power gutted cat stock midpipe vs. racepipe? I have a agency power exhaust which is one of the louder ones for sure. Any info on the subject is appreciated, thanks..
Last edited by Gturbo8; 08-02-2011 at 02:20 PM. Reason: add info
#3
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^+1
A gutted stock cat will be quieter than an un-resonated midpipe. You likely won't have as high of gains as a straight pipe (argued in many other threads) but it will be better than a bad stock cat. If you don't mind spending the money, BHR is the way to go.
FWIW, i run a gutted stock cat an HKS hi-power and don't find it too loud or with too much drone.
HiFlite heard it on the way to DGRR.
A gutted stock cat will be quieter than an un-resonated midpipe. You likely won't have as high of gains as a straight pipe (argued in many other threads) but it will be better than a bad stock cat. If you don't mind spending the money, BHR is the way to go.
FWIW, i run a gutted stock cat an HKS hi-power and don't find it too loud or with too much drone.
HiFlite heard it on the way to DGRR.
#4
The agency power pipe has 2 resonators but there tiny so a lil bit quieter with the stock gutted cat likely not enough difference? mabe ill just switch to stock header and leave the racepipe in
#5
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^+1
A gutted stock cat will be quieter than an un-resonated midpipe. You likely won't have as high of gains as a straight pipe (argued in many other threads) but it will be better than a bad stock cat. If you don't mind spending the money, BHR is the way to go.
FWIW, i run a gutted stock cat an HKS hi-power and don't find it too loud or with too much drone.
HiFlite heard it on the way to DGRR.
A gutted stock cat will be quieter than an un-resonated midpipe. You likely won't have as high of gains as a straight pipe (argued in many other threads) but it will be better than a bad stock cat. If you don't mind spending the money, BHR is the way to go.
FWIW, i run a gutted stock cat an HKS hi-power and don't find it too loud or with too much drone.
HiFlite heard it on the way to DGRR.
>_>
#10
Fuztupnz thanks for ur input hks is loud like agency power im hoping with the stock gutted cat, catback, and header itll be like just running the racepipe and catback
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[quote=fuztupnz;4045723
FWIW, i run a gutted stock cat an HKS hi-power and don't find it too loud or with too much drone.
HiFlite heard it on the way to DGRR.[/quote]
Yep, sounds nice from the outside anyway. The stock cat includes not just the cat body, but a resonator which is the key. A non-resonated midpipe will overwhelm even the stock muffler.
FWIW, i run a gutted stock cat an HKS hi-power and don't find it too loud or with too much drone.
HiFlite heard it on the way to DGRR.[/quote]
Yep, sounds nice from the outside anyway. The stock cat includes not just the cat body, but a resonator which is the key. A non-resonated midpipe will overwhelm even the stock muffler.
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https://www.rx8club.com/rx-8-parts-sale-wanted-44/bhr-resonator-218889/
#18
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Quite correct, which is why my car has exactly that. A Davesport or equivalent metallic substrate cat is ~$100, keeps your CEL off, is vastly lighter, and probably flows much better than stock. If the stock cat is working, I'd advise strongly against gutting it! New replacements cost ~$1200. Alternatively, since working used ones are in great demand from DD people in strict emission standard states, sell your stock one toward financing a BHR midpipe cat/resonator.
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#22
what do you value?
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here was my solution to my loud exhaust
i had stock cat, hks single exit exhaust and that was too loud. highway cruising i believe i put the stock headunit to low/mid teens to overcome drone.
i modified and installed an apexi active tail silencer and i am very happy with it. i now can cruise with the radio set at 6-8. no drone, no drama. i will admit that actual tone quality suffered since the silencer makes it a bit brash in sound.. almost like a less attractive turbo spooling up.
i had stock cat, hks single exit exhaust and that was too loud. highway cruising i believe i put the stock headunit to low/mid teens to overcome drone.
i modified and installed an apexi active tail silencer and i am very happy with it. i now can cruise with the radio set at 6-8. no drone, no drama. i will admit that actual tone quality suffered since the silencer makes it a bit brash in sound.. almost like a less attractive turbo spooling up.
#25
no sleep til it spools
hmm, so gutted cat is quieter than AP midpipe? how is the raspiness of a gutted cat compared to an AP midpipe? my apologies for jacking your thread, OP