10-16-2021, 09:28 AM | #442 |
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10-17-2021, 12:18 AM | #443 |
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For those that have had their secondary cats removed, did you guys use the OEM flanges to connect to the downpipes or did you get new ones?
I'm looking for flanges only for a DIY project but not sure where to buy them from. Any guidance would be appreciated. |
10-19-2021, 12:08 PM | #444 |
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So I just got back from having mine replaced with a x pipe. Honestly, I was expecting a little more. There's a very, very small increase in decibels on throttle. A little more off throttle and more burbles. It's not a game changer but also not going to annoy my neighbors. Otherwise, still happy I did it.
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10-19-2021, 12:22 PM | #445 |
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Just dropped it off at my exhaust shop and handed him over cash. They are welded.
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10-19-2021, 12:23 PM | #446 | |
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10-19-2021, 12:27 PM | #447 | ||
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10-19-2021, 12:54 PM | #448 |
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10-19-2021, 12:55 PM | #449 |
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Man… you got me there in regard to video. Did you leave the secondaries in tact? I pulled those a month later and it made another slightly noticeable increase. Far from necessary, and yes, the sound deadening is either amazing or depressing on how you view it personally.
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10-19-2021, 08:00 PM | #451 |
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10-20-2021, 07:34 AM | #452 | |
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10-20-2021, 08:10 AM | #453 | ||
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10-21-2021, 11:36 PM | #454 | |
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10-22-2021, 02:44 PM | #455 | ||
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10-22-2021, 09:27 PM | #456 |
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Of course, just wasn't sure if the secondary cats still being there helped any with the smell.
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10-25-2021, 10:24 AM | #457 |
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10-26-2021, 03:05 PM | #458 |
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After reading through all the pages and multiple threads on this topic, has anyone done an H pipe for both or a combination of H or X on the first and a straight pipe on the second?
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11-12-2021, 01:44 AM | #460 |
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I have the supersprint H pipe coming in a few weeks. Please correct me if I’m wrong but aren’t there basically three sections. Downpipes, mid pipe and rear section exhaust/muffler.
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11-12-2021, 04:36 AM | #461 | |
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Good thing is I have the valve controller so it does get pretty quiet inside with it closed and ASD off About 500-700 to build a whole new mid pipe, california price so cheaper for lot of people. My guy did a very good job |
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11-12-2021, 04:48 AM | #462 | |
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Downpipe has your primary cats Axleback or slip ons are your muffler section. Newer cars come with secondary cats and OPF which is why people are messing around with mid-pipes instead of catbacks like we used to 10 years ago. Makes sense because these cars come valved, which people wanted to do 10 years ago with boost or remote controlled cutouts. Honestly G8X sounds pretty good, no nasty rasps for me even with no resonator |
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