09-16-2016, 05:22 AM | #23 | |
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09-16-2016, 09:50 PM | #24 | |
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09-17-2016, 05:50 PM | #25 |
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Jb4 will add significant performance increase over downpipe on its own
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09-17-2016, 09:18 PM | #26 |
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09-20-2016, 12:00 PM | #27 |
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I have a 335i N54 where a JB4 adds 80 whp. I don't know the exact number of what the JB4 adds on an M2, but it's nothing remotely close to that. Maybe 20-30 HP? Not worth risking warranty over that little bit of HP. I've been modding and tuning cars for a while now, and 20 HP gain can barely be felt in most driving situations.
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09-20-2016, 04:57 PM | #28 | |
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09-20-2016, 05:02 PM | #29 | |
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With BMWs, you get free service (which I will be taking advantage of), so I will be visiting a dealer at least every 5,000 miles. And the JB4 on my 335i takes quite a bit of time to remove and install, definitely not worth the hassle of always having to do that. So many plastics underneath the hood, and they all get brittle and break over time as the car ages if you keep removing them. |
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09-22-2016, 06:03 PM | #30 |
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Thanks man! Works awesome!
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09-23-2016, 01:34 PM | #31 |
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I look at this thread everyday just waiting for my break in,(still have 800miles to go) so I could do this mod...
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BMW I12 i8 Frozen Yellow- H&R springs, 22" Radenergie F10 Monoblock Forged /// F87 M2 Aw -Vorsteiner Aero Kit, VFF-107,Macht Schnell-Springs,VF-Engineering/Hex tuning Stage Two,ER DP,Stock Exhaust,Drop-In Bmc Filter,AA Intercooler,FTP Charge pipe+boost pipe/// Wish list :Mexico delivery 2024 BMW M2 (G87) |
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09-23-2016, 02:00 PM | #32 |
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09-26-2016, 01:02 PM | #33 |
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In case anyone is getting codes with catless downpipes and they do not run a tune that hides these codes, I am happy to announce that VRSF DP fix is now in stock at Extreme Power House
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09-26-2016, 01:35 PM | #35 |
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I'm not sure about the other products but this is a fix you install and leave on and it will hide the CEL code
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09-26-2016, 01:49 PM | #36 | ||
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over all both are great products and have the same goal of no cel |
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09-28-2016, 10:42 AM | #37 |
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Even JB4 can hide the emission codes but you won't pass the emission test if you have a catless down pipe since you have to revert it back to map 0 for the emission test, and emission codes will pop up shortly. So, you will need a down pipe fix like this one.
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7/08 135 Coupe, Crimson Red, 6 SP, Sport, Taupe Lette/Aluminum. Performance Mods: JB4 on Map 5, BMS DP Fix V3, Injen polished intake, AR Catless DP, Maddad resonated mid-pipes, aFe exhaust polished tips, ST Suspension Coil Over and Hotchkis front sway bar. Others: BMS OCC, BT Scanner, Mud Flap. Next Mods: AA Front Strut Brace.
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10-01-2016, 10:53 AM | #38 |
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more vids please!!!
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10-01-2016, 11:47 AM | #39 | |
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The actual mini cat doesn't make a sounds difference it just stops the cel light from coming on. But here is my cat less downpipe with K&N filter using the mini cat for no cel
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10-03-2016, 11:56 AM | #40 |
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10-03-2016, 01:38 PM | #41 |
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Sounds awesome
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10-10-2016, 12:18 PM | #42 |
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Just a heads up for anyone wanting to try this..after 1,800 miles my rear o2 sensor has failed. I'm removing the mini cat and the catless downpipe. Big Daddies Garage being no help, I wouldn't recommend buying from them. For anyone who already did, be warned!
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10-10-2016, 02:07 PM | #44 |
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