01-31-2024, 08:37 PM | #24 |
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I just got my car 5k miles so far on the clock I didn’t even check the tank area yet. But I think the heat shields should be more than enough to protect the tank. The converter is what holds the most heat if that’s gone shouldn’t the overall Downpipes run cooler due to less restrictions ? Thats my way of thinking.
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01-31-2024, 08:47 PM | #25 | |
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Back to your comment about AWE, I have had 2 touring exhausts with pretty good fitment on prior Audis… but the switch path on my s4 was cursed and the valves would randomly start malfunctioning. (Yes Im a converted Audi owner🤣 Seems the reviews for the m5 have been decent. Its a good note with downpipes and the price is reasonable. |
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01-31-2024, 08:54 PM | #26 | |
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01-31-2024, 09:27 PM | #27 |
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Yes. And turbine wrap for GT22 Turbo (mine is from DEI).
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01-31-2024, 09:35 PM | #28 |
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I have a set of CTS high flow cat primaries that I would sell. I ran them for a few thousand miles and then changed to MAD catless primaries. The smell bothers some, but not others. I am one of the others.
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02-02-2024, 02:24 PM | #29 |
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I added a turbo blanket over the back of the turbos and primary DPs. PTP Turbo blankets. Will post a review post soon
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02-02-2024, 02:33 PM | #30 | |
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The one high flow cat in the system with everything else being straight thru seems to be the optimal sound on this platform. There is one other unique option I still want some more feed back on. There are 2-3 videos circulating, I’ll report back with links, where they have the primary as a DP and the secondary as a high flow cat, backwards of what we are all doing. And it sounds F’ING AMAZING. There is one manufacture we have found: Stone. There is a recent thread on this in this forum section. Here is the stone f90 DPs….but $4600 stone catted downpipes
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Nez1367.50 Info@mad-us.com2014.50 |
02-03-2024, 12:27 PM | #31 |
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Did it make a noticeable difference?
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02-03-2024, 01:51 PM | #32 |
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I don’t know since I did a bunch of heat reduction things at about the same time. You could do one a time and try to drive the same way with the same ambient temperature and test with an infrared, but I was not going to bother doing that. I am pretty confident the turbine wraps don’t hurt.
Turbine blankets and wrapping or coating downpipes appeals to me more than draping a PTP blanket on top of everything since the PTP blanket traps heat in the Vee. I’d rather trap it in the turbine and piping. Some have tested the PTP blanket, though, and claim it helps. I forget whether those people did temperature or acceleration tests. I ordered a Supersprint turbo manifold and am trying to decide whether to do nothing, wrap it, or coat it — maybe Swaintech. Have to call them to find out the turnaround time once it arrives. It’s stuck in customs in NJ right now. |
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02-05-2024, 09:55 AM | #33 |
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Dam I got the awe track and it’s loud AF.. got catless primaries and secondaries waiting to be installed. Going to have cold start removed tho so neighbors won’t have me as much. I think if u leave it in efficient it won’t be that bad then when u wanna rip it switch it to sport plus
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02-06-2024, 10:12 AM | #34 |
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I just wanted primaries to get rid of the heat. If the CEL could easily be coded off by me then i would do this tomorrow. but the thought have having to constantly get it recoded every time my moronic dealer codes my car and thus will know i changed cats creates hesitation.
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02-06-2024, 11:16 AM | #35 |
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There will be some smell with 200 cell. But I still recommend.
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02-06-2024, 03:32 PM | #36 |
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Correct, 200 cell was never intended to stop all the smell but be a midpoint between a factory cat and the high flow of catless.
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02-07-2024, 11:10 AM | #37 |
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Well done. Very happy Thank you team
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02-07-2024, 01:37 PM | #38 |
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04-16-2024, 03:02 PM | #39 |
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im literally thinking about getting secondaries with my MPE EXHAUST to make it a bit more louder and i was thinking about getting primaires but dont want a cel or the smell anyone recommend any SECONDARY DP?
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04-16-2024, 03:35 PM | #40 |
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They are all the same. The only one a few have complained about is vrsp due to the lack of mounting tabs leading to rattle or loosening. Buy what is cheapest. MAD is a good value.
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04-23-2024, 12:08 PM | #41 | |
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Your car will literally sound like this M8: |
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Yesterday, 10:00 PM | #42 | |
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I ordered the car with MPE. Loved the sound but wanted more. Added Eisenmann secondary downpipes and thought it was perfect. I was under the impression primaries would take it up a notch- but was told that the real power increase would come with these and a tune…. It was so obnoxiously loud I removed the primaries a month later. Windows down was barely possible. Cold start was not that refined “German V8” roar. It was very much so like a straight piped mustang 5.0 cold start that was just loud noise. No throaty sound. No symphony that you hear now. The gas smell didn’t bother me- some hate it. But not an issue with me. The downshifting pops and bangs also were far too loud. I’d have to warn people (elderly or moms with strollers) when firing up the car. Some guys enjoy it- but I reverted back to the secondary’s and MPE as it’s the perfect sound profile for me that still fits daily driving, still sounds awesome and definitely turns heads. Just my .02
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