04-23-2015, 11:36 AM | #1 |
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Ultimate-Racing.com downpipes
Just placed an order last night for their high flow cat downpipes and have already received confirmation this morning its been shipped. Thoroughly impressed!
Anyone have experience with their product (quality, fitment)? Planning on having them ceramic coated to try and keep temps down. |
04-23-2015, 12:05 PM | #2 | |
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04-23-2015, 05:17 PM | #3 | |
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Judging by the stock cats overall size I would guess flow rate to be that much better. Will be upgrading my stg 1 hex tune to stg 2. Another reason im doing this is from the heat generated. Hoping the ceramic coating, higher flowing cats, and exhaust wrap will greatly help. |
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05-02-2015, 11:01 AM | #4 |
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Had the high flow cats ceramic coated and installed this week. First impressions... quality of the downpipes are excellent (truth be told didn't have very high expectations given the price), turbo spool is instantaneous, power is effortless, and engine temps feels much cooler than before
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05-02-2015, 03:08 PM | #7 |
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True, didn't even occur to me. I wound up not even wrapping the downpipes because the stock heatshields we were able to modify and put back on. Between the headshield, higher flowing cats, and ceramic coating i didn't think it was necessary to go any further. The engine temps are significantly cooler than it was before.
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05-02-2015, 03:43 PM | #8 |
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Any recommendation for where to get and what brand of turbo blanket? I have a set of Ceramic coated AR Downpipes w/race cats on the way.
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05-02-2015, 04:31 PM | #9 | |
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05-02-2015, 05:22 PM | #10 |
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Expensive for some rockwool insulation!
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05-02-2015, 09:35 PM | #13 |
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06-12-2015, 04:53 PM | #14 |
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Follow up update.
Even with the high flow cats the car triggered a post o2 sensor fault code (p0156). Took a little over a month of driving to trigger but they came on nonetheless. Doesn't really matter however since I'm upgrading my tune here soon.
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06-12-2015, 06:09 PM | #15 |
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Hmmmm - Should Gixxer pull the trigger on this?
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06-12-2015, 09:19 PM | #16 |
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I dont regret it at all. The tune made the biggest difference but the dp's did add some and the noise you get from the turbo's are worth the price of admission, lol.
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06-17-2015, 02:27 PM | #17 |
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Are the OEM heat shields mandatory or highly recommended? Active Autowerke's downpipe write-up says not to re-install them. I didn't install my heat shields back on and haven't noticed any adverse effects yet. Should I be worried? Should I install them back on?
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06-17-2015, 02:42 PM | #18 | |
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If you don't have a coating, you should put the factory heat shields on or use a wrap and turbo blanket. period. There isn't an exception to this. heat is bad.
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06-17-2015, 06:10 PM | #19 |
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I wouldn't go without heatshield especially when BMW places so many different plastic bits around the area. There won't be adverse effects to the exhaust or the hotside of the turbo, if issues arise, it would be to the other parts in the engine bay that is caused by over exposure to heat.
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06-19-2015, 11:00 AM | #20 |
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I already have the Active Autowerkz tune and I am very impressed with it. Downpipes are the next performance step for me, however they (AA) want to sell me their downpipes for $1699 (ouch!) including a software upgrade for the tune that I already have.... I have been tempted to go with a more economical solution and have even considered buying a set of de-catted OEM downpipes, however, I have also been led to believe that the tune should match the downpipes (AA tune + AA downpipes) for optimal performance....
What do you guys think? |
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06-19-2015, 11:35 AM | #21 | |
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I purchased the dp's after I had already upgraded to the vf-engineering hex tune stage 1. After the downpipes, VF is only going to charge me the difference between the stage 1 and stage 2 tune.
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06-19-2015, 11:59 AM | #22 | |
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