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YOUR RESEARCHAdded Secondary Cat Delete Pipes - TopSpeed - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Reported repair
Replace with these
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Reported fix
My secondary cats had a rattle only when really hot so replacing with these fixed the problem and at a good price too!
Added Secondary Cat Delete Pipes - TopSpeed - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Replace with these' (1 discussions report resolution; 0 report an unsuccessful attempt). Across 1 matching discussions, The most frequently discussed action is 'Replace with these' (1 discussions). For that action, 1 discussions report a resolution and 0 report an unsuccessful attempt. The most frequently reported fix is 'Replace with these', supported by resolution reports in 1 discussions. These are forum reports and suggestions, not a confirmed diagnosis.
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As for the CV joint boots, I just replaced all 4 of them.
Added Secondary Cat Delete Pipes - TopSpeed - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Clean enough
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Suggestion
I am about to smog mine, have had the TS Cat Delete pipes for about a year...hope it's clean enough to pass.
Added Secondary Cat Delete Pipes - TopSpeed - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace inner boots (again) as the l/s had split
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Suggestion
Last week I had to replace my inner boots (again) as the L/S had split.
Added Secondary Cat Delete Pipes - TopSpeed - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace just a pain dealing
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Suggestion
The boots are pretty cheap to replace just a pain dealing with all the cv joint grease.
Added Secondary Cat Delete Pipes - TopSpeed - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Test numbers way back in a thread and will update
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Suggestion
I posted the actual before cat delete smog test numbers way back in a thread and will update with the results from the test with the 2nd cat delete installed.
Added Secondary Cat Delete Pipes - TopSpeed - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Test with the 2nd cat delete installed
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Suggestion
I posted the actual before cat delete smog test numbers way back in a thread and will update with the results from the test with the 2nd cat delete installed.
Added Secondary Cat Delete Pipes - TopSpeed - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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20 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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Generation: 20261026T105141Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I recently removed a FDM modified muffler and replace it with a PSE.
http://986forum.com/forums/general-discussions/56379-installed-pse-porsche-sport-exhaust-photos.html
The sound of the FDM muffler was louder and more to my liking. After reading numerous threads, I elected to add secondary cat delete pipes to improve the sound of the PSE. There were three choices for the pipes; Fabspeed, Circuit Werks and TopSpeed. Fabspeed was just too much money at close to $500. I looked at Circuit Werks and didn’t care for the O2 Sensor holes that I would not use and would be plugged. They did have a mounting tab but I didn’t deem it necessary due to the weight of the pipe.
I ended up settling on the TopSpeed pipes. What I really liked with their pipes is they are in two pieces. This makes the mounting very easy. I read one thread where the poster had bought Fabspeed pipes and could not get them to line up and mount correctly. He ended up taking the car in and had a shop do it for him. They had to add an extension pipe to get them mounted.
The removal of the secondary cat was very easy and pretty straight forward. The mounting of the TopSpeed pipes was extremely easy. I followed the lead of others who had done this mod and attached the front but left the bolts very loose. I then attached the rear pipes. After securing the rear I went back to the front and tightened them down.
TopSpeed is a vendor on this board and posted a special on these pipes back in 2012. I sent them a PM and asked if the offer was still good. It was. So instead of the $199 eBay price (or their current special on eBay of $188), they sold them to me for $160 shipped! Class act. Shipping was quick and communication was great!
http://986forum.com/forums/boxster-parts-sale-wanted/33153-f-s-che-boxster-test-pipes.html
As far as sound is concerned it is much better with the secondary cats deleted.
If you search you can find specific examples, but the rundown on CA is it technically fails the visual inspection, but if your car is in good order it will still pass the sniffer test. Of the CA cars mentioned here, I don't remember any not passing.
I am about to smog mine, have had the TS Cat Delete pipes for about a year...hope it's clean enough to pass. My guy won't bother with the visual, so crossing fingers out here in CA!
I also have the TS cat deletes and TS mufflers, for almost 2 years.
I have my smog test in the Fall this year, but others have done it and passed just fine.
A good tip is to get the engine nice and hot before the smog as the extra emissions when cold it the reason they put 2nd cats on California cars in the first place.
I posted the actual before cat delete smog test numbers way back in a thread and will update with the results from the test with the 2nd cat delete installed.
Its nice to be able to quantify the results.
It will fail the visual test if they know what to look for and where to look. For2000 and later cars in California they no longer require the tailpipe portion of the smog inspection test. It is all done through the OBD II connector.
Not sure if Chuck's car even has the O2 sensors on the secondary cats. Pretty sure I read you can disconnect them on a 2003 like yours and mine and it wont throw a CEL, someone correct me if I'm wrong on that.
Chuck I would love to hear sound bit of your exhaust system.
Nice! Pelican doesn't even list O2 sensors for the secondary cats, unless I'm reading their listings wrong and I put in that my car is a 2003 S.
http://www.pelicanparts.com/catalog/SuperCat/1052/POR_1052_EXHPIP_pg1.htm#item0
A word of caution...
I fitted my Top Speed headers and cat delete pipes a few years ago and while I have great respect for the pricing / products, be aware that the drive shaft rubber boots do not take kindly to the extra heat generated by the exposed pipes - especially in stop/go driving.
Last week I had to replace my inner boots (again) as the L/S had split. On closer examination, both boots were showing signs of hardening from the radiated heat after only 20,000 km (13,000 miles). This was on a 6 speed Boxster, the 5 speed may be different as they tend to last longer on the 5 speeder.
The L/H side (drivers side in the US) pipe is only about 50mm from the boot, so wrapping, ceramic coating or a heat shield (as fitted to the original pipes) may be the answer. I'm debating which way to go on this....
Great information Steve, thanks for posting. It sounds like wrapping them would be the easiest and most cost efferent. I have never done it before but will start doing my homework on it.
Interesting on the heat issue. The first thing I noticed was the truck didn't get nearly as hot as it use to so I thought I was in the clear on excessive heat.
Chuck - I can't say I like wrapping - it works OK but I have very good experience with ceramic coating of exhaust pipes, mostly on motorcycles where you can literally feel the difference by placing your hand on the pipe within a few minutes of stopping the engine. To get the best heat dissipation, the pipes need to be coated on both inner & outer surfaces and it is cost affective - just google your local area for ceramic coatings.....
I have the top speed bypass pipes on my '02 base. My secondary cats had a rattle only when really hot so replacing with these fixed the problem and at a good price too! The car passed a New York State inspection with them as well. As for the CV joint boots, I just replaced all 4 of them. The inside boots were dried out and one outer was cracked. The boots are pretty cheap to replace just a pain dealing with all the cv joint grease.
Have to agree with Steve here. I started a thread on wrapping the pipes and found out it makes the metal brittle. There should be a local shop that does the ceramic coating and it shouldn't too cost much.
Didn't know this was an issue to the boots, I just wanted to keep the heat down.
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