Fabspeed muffler bypass pipes...!!!
#1
Three Wheelin'
Thread Starter
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Hey everybody... just wanted to let you know of a really cool set of videos at www.fabspeed.com
I was particularly impressed with the muffler bypass pipe for the 996... the sound is awesome! - I'd say it compares to a PSE in terms of sound performance.
Fabspeed has posted complete videos showing the underside of their exhausts and how they sound at full throttle, taking off, cruising by and while you are in the cockpit... check them out.
one question I have about the bypass pipe is its effect on horsepower.. Fabspeed claims 8-10 HP with their own sport exhaust.... but how much horsepower do you get with just the bypass pipe... they didn't mention any gains in the video clip... DO YOU LOSE ANY HP???
enjoy
Peter
1999 996 6sp
Silver/Boxter Red
I was particularly impressed with the muffler bypass pipe for the 996... the sound is awesome! - I'd say it compares to a PSE in terms of sound performance.
Fabspeed has posted complete videos showing the underside of their exhausts and how they sound at full throttle, taking off, cruising by and while you are in the cockpit... check them out.
one question I have about the bypass pipe is its effect on horsepower.. Fabspeed claims 8-10 HP with their own sport exhaust.... but how much horsepower do you get with just the bypass pipe... they didn't mention any gains in the video clip... DO YOU LOSE ANY HP???
enjoy
Peter
1999 996 6sp
Silver/Boxter Red
![bigbye](https://rennlist.com/forums/graemlins/xyxwave.gif)
#2
Menace to Society
Rennlist Member
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Some have reported a loss of torque as a result of Fabspeed exhaust systems. I have not experienced any loss of power, and I have both the exhaust and the headers. One explanation for the loss of power is that the installation was somehow faulty and caused a "leak" in the exhaust system. I think most of the people with the Fabspeeds are happy with them (me included)
#3
Racer
Join Date: Jan 2003
Location: Was Orange County, CA now in Charlotte
Posts: 431
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally posted by c70Pete
one question I have about the bypass pipe is its effect on horsepower.. Fabspeed claims 8-10 HP with their own sport exhaust.... but how much horsepower do you get with just the bypass pipe... they didn't mention any gains in the video clip... DO YOU LOSE ANY HP???
enjoy
Peter
1999 996 6sp
Silver/Boxter Red
one question I have about the bypass pipe is its effect on horsepower.. Fabspeed claims 8-10 HP with their own sport exhaust.... but how much horsepower do you get with just the bypass pipe... they didn't mention any gains in the video clip... DO YOU LOSE ANY HP???
enjoy
Peter
1999 996 6sp
Silver/Boxter Red
![bigbye](https://rennlist.com/forums/graemlins/xyxwave.gif)
#5
Racer
Join Date: Jan 2003
Location: Was Orange County, CA now in Charlotte
Posts: 431
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally posted by c70Pete
Question: if there are no mufflers... can their be resonance?
Question: if there are no mufflers... can their be resonance?
#6
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally posted by c70Pete
if there are no mufflers... can their be resonance??
if there are no mufflers... can their be resonance??
Any pipe if not tuned can create resonance. Wave bounces and noise coming out of engine does make turns in the headers.
Or so I think...
![Confused](https://rennlist.com/forums/images/smilies/confused.gif)
#7
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
That's the first sound clip of a Fabspeed exhaust that I've I liked.
![jumper](https://rennlist.com/forums/graemlins/jumper.gif)
Trending Topics
#8
Burning Brakes
Join Date: May 2001
Location: Washington, DC
Posts: 1,163
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally posted by c70Pete
I was particularly impressed with the muffler bypass pipe for the 996... the sound is awesome! - I'd say it compares to a PSE in terms of sound performance.
one question I have about the bypass pipe is its effect on horsepower.. Fabspeed claims 8-10 HP with their own sport exhaust.... but how much horsepower do you get with just the bypass pipe... they didn't mention any gains in the video clip... DO YOU LOSE ANY HP???
I was particularly impressed with the muffler bypass pipe for the 996... the sound is awesome! - I'd say it compares to a PSE in terms of sound performance.
one question I have about the bypass pipe is its effect on horsepower.. Fabspeed claims 8-10 HP with their own sport exhaust.... but how much horsepower do you get with just the bypass pipe... they didn't mention any gains in the video clip... DO YOU LOSE ANY HP???
2) I did get an 8 HP gain on a dyno with the Fabspeed headers and mufflers. I did not dyno with the bypass pipes but I doubt they would add anything. The first thing the engine sees on the exhaust side is the headers and then the cats, so I suspect the mufflers do very little to affect the back pressure to the engine and therefore won't help or hurt much if you take them off.
Karl
#9
Racer
Join Date: Jan 2003
Location: Was Orange County, CA now in Charlotte
Posts: 431
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally posted by Karl S
1) The bypass pipes are much, much louder than PSE. It may not show up on their audio clip but these babies are LOUD. They are comparable to a Cup car.
Karl
1) The bypass pipes are much, much louder than PSE. It may not show up on their audio clip but these babies are LOUD. They are comparable to a Cup car.
Karl
I know they will be loud, but can you give me an idea if there is a lot of resonation at certain RPM's? Are they so loud that they would be tickets magnets or could you get away with them on the street.
Thanks,
Jake
#10
Advanced
Join Date: Oct 2003
Location: milwaukee, wi., usa
Posts: 98
Likes: 0
Received 0 Likes
on
0 Posts
![Cool](https://rennlist.com/forums/images/icons/icon6.gif)
I'm thinking of ordering a pair tomorrow... f**k it !!!!
As far as I'm concerned the 996 is waaaaaaaay too quiet.... besides I live in Harley-ville (milwaukee) so I doubt even with these pipes it will be too loud compared to some of these Harley's around here.... they are LOUD !!!!
So.... if I take the plunge and then decide they're too much there might be a pair slightly used here for sale !!
best,
trev
As far as I'm concerned the 996 is waaaaaaaay too quiet.... besides I live in Harley-ville (milwaukee) so I doubt even with these pipes it will be too loud compared to some of these Harley's around here.... they are LOUD !!!!
So.... if I take the plunge and then decide they're too much there might be a pair slightly used here for sale !!
best,
trev
#12
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I had these on my 996. Guys, there is no candy coating how loud your car is without a muffler. It sets off car alarms and pisses off neighbors. You can't start your car in the AM or come home late in the PM without waking up anyone in your house, and probably your neighbors house.
I ran them on the street, and was never ticketed, but that's more of a function of where I live (rural just outside of Charlotte) than anything else.
I used them on the track because it saves weight and also it allws you to hear how smooth you are on the throttle in critical situations. The down side it that you cant BS about how well you heen and toe ;-)
I ran them on the street, and was never ticketed, but that's more of a function of where I live (rural just outside of Charlotte) than anything else.
I used them on the track because it saves weight and also it allws you to hear how smooth you are on the throttle in critical situations. The down side it that you cant BS about how well you heen and toe ;-)
#13
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Maybe someone here can answer this question for me since the good folks over at Fabspeed have had 3+ days to answer it now and haven't gotten back to me.
Can you use other tips with these bypasses? It looks like in the picture and the video that the tips that come with the pipes are welded on. I didn't see any options for tips and it didn't mention using your stock tips with these pipes. If you think about it, you could go to a local muffler shop and probably get a couple of short pieces of pipe pretty cheap that if you could re-use your stock tips could make for a far less expensive solution. If I remember correctly without running to the garage and looking under the car, the stock tips are attached to a short piece of pipe that curves towards the mufflers, so maybe you'd have to reverse your tips left to right so that they curved towards the catalytic converters and then install a short extension to reach the rest of the way.
It would be nice to get a decibel meter reading on these pipes like porschephd did for the different turbo mufflers, having heard cup cars up close I can only imagine how loud these babies must be...
Can you use other tips with these bypasses? It looks like in the picture and the video that the tips that come with the pipes are welded on. I didn't see any options for tips and it didn't mention using your stock tips with these pipes. If you think about it, you could go to a local muffler shop and probably get a couple of short pieces of pipe pretty cheap that if you could re-use your stock tips could make for a far less expensive solution. If I remember correctly without running to the garage and looking under the car, the stock tips are attached to a short piece of pipe that curves towards the mufflers, so maybe you'd have to reverse your tips left to right so that they curved towards the catalytic converters and then install a short extension to reach the rest of the way.
It would be nice to get a decibel meter reading on these pipes like porschephd did for the different turbo mufflers, having heard cup cars up close I can only imagine how loud these babies must be...
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
#14
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally posted by Ghost Rider
If you think about it, you could go to a local muffler shop and probably get a couple of short pieces of pipe pretty cheap ....
If you think about it, you could go to a local muffler shop and probably get a couple of short pieces of pipe pretty cheap ....
The following users liked this post:
Flyimports (06-19-2021)
#15
Addict
Rennlist Member
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
As I've posted before on this topic, you can go to your local muffler shop and have a test set made very cheaply. Mine cost $20. Just pop off a muffler for them to use as a pattern. Both sides are the same. If you like the sound, you can go the cheap route and have tips welded on the mock ups or you can order the nice ones from Fabspeed.
I use mine on a track only car. If you use them on the street, forget about your radio.
I use mine on a track only car. If you use them on the street, forget about your radio.