TS cat delete install

[Chuck W.]

I also installed the Top Speed Cat delete pipes on my Boxster after I replaced my FDM exhaust with a PSE. The PSE was to quiet for me. Based on Kram's (KRAM36) recommendation (I miss him) I used EasySeal Exhaust Clamps. EasySeal Exhaust Clamps: Torca EasySeal Clamps in Stainless Steel for Lap Joint Connections

As far as JayG's concern regarding deleting an emission component it is a fair topic to be discussed. During my searches on the topic I found that the Boxsters with the Top Speed cat delete pipes would still pass a smog test where a sniffer was used. I appears that the upstream cats are efficient enough to keep the emissions within compliance. You will fail a visual inspection though.

[JayG]

Originally Posted by Chuck W.

I also installed the Top Speed Cat delete pipes on my Boxster after I replaced my FDM exhaust with a PSE. The PSE was to quiet for me. Based on Kram's (KRAM36) recommendation (I miss him) I used EasySeal Exhaust Clamps. EasySeal Exhaust Clamps: Torca EasySeal Clamps in Stainless Steel for Lap Joint Connections

As far as JayG's concern regarding deleting an emission component it is a fair topic to be discussed. During my searches on the topic I found that the Boxsters with the Top Speed cat delete pipes would still pass a smog test where a sniffer was used. I appears that the upstream cats are efficient enough to keep the emissions within compliance. You will fail a visual inspection though.

Thanks Chuck.

Where do you find a smog shop that will pass the car with the downstream cats removed?

Also, I meant to say before, IMHO, obnoxiously loud cars belong only at the track, not on the street. It really sucky to be driving with my top down and get blasted by a really loud exhaust so I can't hear anything else. the driver does not hear how loud and annoying it is from behind or to one side

[Chuck W.]

Originally Posted by JayG

Where do you find a smog shop that will pass the car with the downstream cats removed?

Also, I meant to say before, IMHO, obnoxiously loud cars belong only at the track, not on the street.

I have two smog shops I use. Now that they are only using the OBD II to smog check '96 and later cars it is a pretty easy in and out as long as all the flags are set. These folks are pretty unmotivated and don't do a full inspection. With our cars you would have to have it on a lift or get down pretty low to see the secondary cats.

With the The Top Speed cat delete pipes it defiantly makes it louder. But not substantially. To me it is more of a tone difference. However, I will bow my head in shame..... When I had a Harley it was loud. And, when I had my 993 Cab I had Super Cup exhaust on it.... very loud. I've changed... honest!

[navair]

Originally Posted by JayG

Thanks Chuck.

Where do you find a smog shop that will pass the car with the downstream cats removed?

Also, I meant to say before, IMHO, obnoxiously loud cars belong only at the track, not on the street. It really sucky to be driving with my top down and get blasted by a really loud exhaust so I can't hear anything else. the driver does not hear how loud and annoying it is from behind or to one side

Paul's Smog Check in Lakeside (Eucalyptus Hills) has passed my '02 S with rear cat bypass pipes, 2X.

The NOX etc numbers are still a fraction of allowable with the OEM header cats. I don't know why Porsche added the 2 aft cats...