Fabspeed Bypass...Worth it??

[jmatta]

I have a different situation with the Fabspeed pipes, as far as sound is concerned. I installed a "PSE type" muffler, modified by Oettle Autodienst on my '02 S. I was pleased with the sound, but it still didn't have the bark or tone I wanted. I happened across a pair of slightly used Fabspeed secondary pipes and purchased them quite inexpensively. After installing, the sound of my exhaust was night and day; quite raspy and GT3 like on throttle, but very well demeanored cruising. And as the others stated, I removed a considerable amount of weight. The pipes were definitely worth the expense and time to install.

[ekam]

Do the complete Fabspeed exhaust system. I got mine used.

Can't stop driving the car through tunnels.

[jwade]

Go ahead and get them along with a BMC air filter. Great results with the PSE.

If you have extra cash, get some TurboWerx headers too. Then the sound is really nice and you will get more power. Love my setup!!

[skibovr6]

I already have an EVOMS intake on the car. Where do the o2 sensors go after the fabspeed bypass are installed?

[Johnny Danger]

Originally Posted by skibovr6

I already have an EVOMS intake on the car. Where do the o2 sensors go after the fabspeed bypass are installed?

You can disregard the o2 sensors for the secondary cats. You don't need them .

[jaykay]

Hmmm....sound is subjective (an unplanned illiteration) I see!

The O2 sensors on your model should be right in the headers which incorporate the primary cats. The secondary ones are not monitored so there should be no problem.

[Jake D]

Originally Posted by jaykay

Hmmm....sound is subjective (an unplanned illiteration) I see!

The O2 sensors on your model should be right in the headers which incorporate the primary cats. The secondary ones are not monitored so there should be no problem.

The secondary sensors are not monitored? If this is true then why are they there for 1? and why have I seen multiple times on here that when you go to replace a bad O2 sensor to replace all 4 at the same time?

Is this true on my 00 S? or?? Can someone explain please?
Thanks

[jaykay]

Different model years have different configurations. I have an 00 s and there are no sensors in the secondaries; and no bungs for them. They will still perform a catalytic function irrespective of sensor presence. They are likely there for: emissions control; a back up for the mains; additional emissions reduction.

We would have to ask the designer.

[Johnny Danger]

Originally Posted by Jake D

The secondary sensors are not monitored? If this is true then why are they there for 1? and why have I seen multiple times on here that when you go to replace a bad O2 sensor to replace all 4 at the same time?

Is this true on my 00 S? or?? Can someone explain please?
Thanks

The secondary cats are superfluous. The vehicle's OBD monitors the o2 readings from the header/pre-cats. Someone has given you some bad advice.

[navair]

Originally Posted by jmatta

I have a different situation with the Fabspeed pipes, as far as sound is concerned. I installed a "PSE type" muffler, modified by Oettle Autodienst on my '02 S. I was pleased with the sound, but it still didn't have the bark or tone I wanted. I happened across a pair of slightly used Fabspeed secondary pipes and purchased them quite inexpensively. After installing, the sound of my exhaust was night and day; quite raspy and GT3 like on throttle, but very well demeanored cruising. And as the others stated, I removed a considerable amount of weight. The pipes were definitely worth the expense and time to install.

I have the same setup (Fister/Pedro/"PSE" mod), only with Stebro bypass pipes bought cheap off a lister. It's mellow top up on the highway, but I have to admit it's pretty freeking loud when I jump on it! Awesome GT3 note