Muffler bypass done today
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Joined: Jan 2014
Posts: 159
From: San Mateo, California
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I put the bypass pipes on my car. Meh, theyre loud but I guess im desensitized to loud cars. My last car was a fully race exhaust setup Viper, it shooked my house when I started it in the garage.
Maybe for a daily driver the bypass would be too loud. I enjoy the sound though
Maybe for a daily driver the bypass would be too loud. I enjoy the sound though
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Joined: Jan 2014
Posts: 17
From: Orange County, ca
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Hello everyone, how's going?
Today I finally put muffler bypass pipes on my 997.1 even almost everyone said it's too loud.
It's really too loud to drive it everyday, I can't even hear exhaust sounds but droneeeeeeee.
It hurts my ear and most likely waste my money.
So here is the question.
Anyone has experienced with fabspeed supercup exhaust system?
How does it sound compare to gundo hack?
I believe it should be one step back from muffler bypass, but is it still too loud?
Otherwise I may just throw my gundo muffler back on.
Thank you for your time!
Today I finally put muffler bypass pipes on my 997.1 even almost everyone said it's too loud.
It's really too loud to drive it everyday, I can't even hear exhaust sounds but droneeeeeeee.
It hurts my ear and most likely waste my money.
So here is the question.
Anyone has experienced with fabspeed supercup exhaust system?
How does it sound compare to gundo hack?
I believe it should be one step back from muffler bypass, but is it still too loud?
Otherwise I may just throw my gundo muffler back on.
Thank you for your time!
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Registered User
Joined: Jul 2012
Posts: 248
From: NY
Rep Power: 23
I used to have this hacked muffler, it was a little too quiet for me, but now I may put them back on again.
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Joined: Nov 2003
Posts: 426
From: Ridgefield, CT
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muffler bypass and 200 cell cats is a MONSTER combo - way too loud for any residential streets, will set off car alarms in parking garages, and get you bounced out of tracks or autocrosses (ask me how I know).
my wife used to say she could hear me coming from nearly 1 mile away when the bypass pipes were on.
if you want attention from your local police, this is a great way to go :-)
I've long thought it might be fun to build a dump pipe that is vacuum/electric controlled pipe check out this video and sound
http://www.quicktimeperformance.com/QTEC/
my wife used to say she could hear me coming from nearly 1 mile away when the bypass pipes were on.
if you want attention from your local police, this is a great way to go :-)
I've long thought it might be fun to build a dump pipe that is vacuum/electric controlled pipe check out this video and sound
http://www.quicktimeperformance.com/QTEC/
Last edited by Gundo; Mar 3, 2014 at 07:26 AM.
Thread Starter
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Registered User
Joined: Jul 2012
Posts: 248
From: NY
Rep Power: 23
Now I am running with the straight pipe which means no mufflers.
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Joined: Apr 2006
Posts: 1,445
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Wonder if a true operable "cut-out" style bypass would be possible or even fit? Vacuum powered, completely by passed insane sound or back to mufflers with the flip of a switch?
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Joined: Oct 2009
Posts: 296
From: Regina SK canada
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Took my first drive today with my bypass pipes..It sounds great, I was expecting a super obnoxious drive and its really not thaaat much louder then my previous Eissemann valved mufflers
Ill make a good video to show off the sound.
Ill make a good video to show off the sound.
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Joined: Jul 2009
Posts: 2,431
From: Atlanta, GA
Rep Power: 157
Hello everyone, how's going?
Today I finally put muffler bypass pipes on my 997.1 even almost everyone said it's too loud.
It's really too loud to drive it everyday, I can't even hear exhaust sounds but droneeeeeeee.
It hurts my ear and most likely waste my money.
So here is the question.
Anyone has experienced with fabspeed supercup exhaust system?
How does it sound compare to gundo hack?
I believe it should be one step back from muffler bypass, but is it still too loud?
Otherwise I may just throw my gundo muffler back on.
Thank you for your time!
Today I finally put muffler bypass pipes on my 997.1 even almost everyone said it's too loud.
It's really too loud to drive it everyday, I can't even hear exhaust sounds but droneeeeeeee.
It hurts my ear and most likely waste my money.
So here is the question.
Anyone has experienced with fabspeed supercup exhaust system?
How does it sound compare to gundo hack?
I believe it should be one step back from muffler bypass, but is it still too loud?
Otherwise I may just throw my gundo muffler back on.
Thank you for your time!
I was thinking of adding these to my setup. Do you have a sound video?
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Joined: Jan 2014
Posts: 211
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White Rock- looking at your setup listed in your sig, I would keep the mufflers and ditch the 200 cell x-pipe. I recently installed the catless x-pipe and it just amplified the exhaust sound, which I think is what everyone is after- a slightly louder tone, yet I was still able to retain the same exhaust note. Keeping the muffler and just removing the cats allow you to still have a refined exhaust tone, instead of the raw drone sound of a complete muffler bypass.
I know there's been concern about loss of torque when doing a cat bypass, but I think the same will happen with a muffler bypass since both scenarios reduce back pressure. Plus, the torque loss wasn't that dramatic, especially with the cross-flow design of Fabspeed's x-pipe which helps maintain a bit of that back pressure. Good thing is there's a hp and tq gain in the higher RPM's.
If you're worried about emissions, the 200 cell cats aren't street legal either (at least in California), so the fine for running non-compliant cats vs. no cats at all would be the same.
I know there's been concern about loss of torque when doing a cat bypass, but I think the same will happen with a muffler bypass since both scenarios reduce back pressure. Plus, the torque loss wasn't that dramatic, especially with the cross-flow design of Fabspeed's x-pipe which helps maintain a bit of that back pressure. Good thing is there's a hp and tq gain in the higher RPM's.
If you're worried about emissions, the 200 cell cats aren't street legal either (at least in California), so the fine for running non-compliant cats vs. no cats at all would be the same.