08-03-2020, 09:02 PM | #45 | |
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08-04-2020, 08:46 AM | #46 |
S65 FTW!!!
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does this void the warranty?
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08-04-2020, 10:52 AM | #47 |
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I highly doubt it
If it did it would have to be for a very specific reason and dealer would have to prove it.
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08-05-2020, 08:15 PM | #48 |
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08-06-2020, 12:58 AM | #49 | |
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Where exactly are the catalytic converters on the States spec X5’s because in Europe ‘catback’ has two meanings |
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08-06-2020, 09:01 AM | #50 | |
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so its cats, then the resonator (front muffler) and then the rear muffler
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08-06-2020, 01:11 PM | #51 | |
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So as previously stated, cat back can be either from the downpipes or the middle cats. No wonder our V8’s sound like a sick mosquito |
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08-14-2020, 05:09 AM | #52 | |
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Three hour job in total to drop the exhaust to weld the tops of straights. As you can see, in the EU we have secondary cats just in front of the resonator. I stall have the OPF's and cats on the downpipe so i hope it wont fail emissions or locate a friendly tester |
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08-17-2020, 03:06 AM | #53 | |
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08-17-2020, 10:14 AM | #54 | |
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08-17-2020, 12:15 PM | #55 |
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Had anyone been able to answer exactly what diameter piping is used to delete the resonators?
Still planning on doing an H-pipe, but I need to start searching. |
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08-17-2020, 12:41 PM | #56 |
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I’ve tried downloading a video but keep getting the message saying security token is missing
Last edited by Addbuyer; 08-17-2020 at 01:09 PM.. |
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08-17-2020, 02:04 PM | #59 |
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So.... I've just watched a TON of videos.... and I think I'm ready to take the plunge on this. Honestly, I'm not crazy about the "pops and crackles" I'm hearing with straight pipes, and I'm not looking for the "raspiness" generally associated with X-pipes either..
With that said.... I'm going to go with an old-school H-pipe, and hopefully get more of a deeper "muscle car" sound, versus a modern European sound. Nothing against anyone else's personal choices.... but I think an H-pipe is best for me. I know the pipes are 3" ID..... but can anyone tell me about how LONG the resonator is? X pipes are so popular now, but H pipes are tougher to find, so I need to make sure I get one long enough to replace the resonator. Anyone have their resonator removed, that can take a quick length measurement for me please? |
08-18-2020, 05:28 AM | #60 | |
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Can you not take it to an exhaust specialist and let them worry about the reinstatement H-Pipes? Took Torquflow 3 hrs start to finish, they did 90% of the work with the system in place and dropped the exhaust down just enough for the weld around the top of the pipes |
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08-18-2020, 08:16 AM | #61 | |
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I don't have a lot of "specialty" places anywhere near me. And what few places there are.... are 2-3x more expensive, especially when you have an American accent. I may end up going that route..... but this is a simple exhaust job. No "bends" requires. I have a difficult job paying anyone to do a job that I can do myself. |
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08-18-2020, 09:47 AM | #62 | |
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08-18-2020, 09:52 AM | #63 | |
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08-19-2020, 07:58 AM | #64 |
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Awesome Tim. Thanks!!!
My car is a US spec as well, so it will be an exact match. Thus far, the only suitable H-pipe I've found (pre-fabbed) is 12" long.... so it would be very close. I'd like to find one that is 13" so there is some overhang. Still looking. This helps considerably though. Thanks!
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08-19-2020, 01:33 PM | #65 |
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Thanks again everyone...... I just ordered a total of 2 universal H-pipe kits, after speaking with a friend who is a welding/exhaust pro, who is incidentally, also going to help me with the fabrication.
We've already worked out the plan...... going to make a dual H-pipe setup, with 2 crossover pipes, exactly 12 inches apart from one another. That should be enough distance to disrupt the airflow without impeding it..... and then disrupt the airflow again 12 inches later. This will add a bit of volume by eliminating the resonator.... but will also eliminate the raspiness of an x-pipe..... as well as the crackly/poppy-ness of a straight pipe setup. The sound I'm going for...... is "1972 Chevelle". I watched a video of a guy with a twin turbo V8 Mustang... who switched from a triple x-pipe to a triple h-pipe.... and the "volume" was the same... but the tone of the H-pipe was much lower and blurblier. Fingers crossed. More to follow when everything arrives. How many unique words did I make up in this post? Lol |
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08-19-2020, 04:11 PM | #66 | |
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Make sure to document it and make a new thread once its done!
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