|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
downpipes dilemma
|
|
12-25-2012, 10:24 PM | #1 |
Captain
84
Rep 703
Posts |
downpipes dilemma
hello i'm sure this has been discussed before but i cant seem to find the info i am looking for. it seems like an overwhelming about of people on here have aftermarkets downpipes. i'm sure at least some of you still are under warranty. do you remove them every time you go to the dealer? i want to get them sooo bad but i cant deal with removing them every time. i know if something breaks the dealer needs to prove that component caused the failure. but lets say for example i go in for an oil change and they jack the car up and note that i have downpipes. then 5 months later my turbos start to die and i remove the downpipes and put the stock ones back in. cant the dealer say you had the other downpipes installed before so we're not going to fix this? or do the downpipes need to be installed at the time when they see the car for the turbo problem? thanks
|
12-25-2012, 10:41 PM | #2 |
Colonel
112
Rep 2,856
Posts
Drives: 2011 335is E93
Join Date: Aug 2011
Location: Ontario
|
I will say that it depends on your SA and the dealer you're working with.
Some will rat you out and others don't care. I would however, if anything breaks or fails put back the old ones when doing more serious work such as turbos or anything exhaust related. As for DD they're are the DP fix and code suppression so having DP's will give you that extra little kick in the pants and put less stress on your turbo system. Go to an Indy shop for any maintenance if your worried about work being done and when something serious happens swap out the mods. |
Appreciate
0
|
12-25-2012, 10:46 PM | #3 | |
Captain
84
Rep 703
Posts |
Quote:
|
|
Appreciate
0
|
12-25-2012, 10:59 PM | #4 |
Colonel
112
Rep 2,856
Posts
Drives: 2011 335is E93
Join Date: Aug 2011
Location: Ontario
|
Whether or not they need to "prove" anything it'll be a huge headache for you. Might as well avoid the whole situation by going in stock if you have to.
I would never do work at the stealership unless its warranty covered work. They're are plenty of better qualified Indy shops out there. DP's are fun as hell, but a bitch to install/remove if you're not set-up properly at home. The exhaust gasket is also only reusable a few times - it's not invincible so eventually of you've done enough swaps I'd replace it. Otherwise, enjoy the car dude! And stop going to the stealership lol! |
Appreciate
0
|
12-25-2012, 11:21 PM | #5 | |
Captain
84
Rep 703
Posts |
Quote:
i also get a free oil change every 7,500 miles. because i do my own at 7,500 miles then when it hits 15,000 miles the dealer does the free one. HOW THE F DO SO MANY OF YOU GUYS HAVE DOWNPIPES? LOL |
|
Appreciate
0
|
12-26-2012, 12:05 AM | #6 |
Colonel
112
Rep 2,856
Posts
Drives: 2011 335is E93
Join Date: Aug 2011
Location: Ontario
|
A lot of guys swap every visit and others don't care lol....
And then again others may have decent relationships with their stealership. As for me, I'm out of warranty and enjoy the car as much as possible! You'll love the extra grunt it gives the exhaust note when your both DD and giving her into high RPM ....but, from the sounds of it maybe not for another two years lol. |
Appreciate
0
|
12-26-2012, 09:36 AM | #7 |
Captain
81
Rep 885
Posts |
I just replaced my raceland DP's for the OEM pipes so that I can go in for DME updates. I am also at 67,000 miles and am anticipating the possibility of needing turbos under warranty. Some interesting things I have noticed switching from catless to OEM, slightly quieter startup and drone on highway, a noticible difference in initial pickup, boost is about .3 or .4 higher with OEM DP's and my oil cooler temp was about 10 deg. cooler which seemed kinda wierd. I do have 2.5 inch pipe and resinators for mufflers which is the cause of a lot of drone and noise.
__________________
|
Appreciate
0
|
12-26-2012, 10:05 AM | #8 | |
Colonel
112
Rep 2,856
Posts
Drives: 2011 335is E93
Join Date: Aug 2011
Location: Ontario
|
Quote:
The aftermarket DP's flow much better than stock so there is no reason that they should hold less boost. |
|
Appreciate
0
|
12-26-2012, 12:50 PM | #9 | |
Brigadier General
89
Rep 3,732
Posts
Drives: BMW S1000XR
Join Date: Jun 2011
Location: Gilbert, AZ
|
Quote:
__________________
BMWCCA member |
|
Appreciate
0
|
12-26-2012, 02:16 PM | #11 |
Colonel
130
Rep 2,489
Posts
Drives: 2007 E92 SG 335i 6MT
Join Date: Apr 2011
Location: SW Florida
|
Mainly depends on the SA, otherwise....
Take them out for major warranty claims (turbo/wastegates/engine failure/whatever) and leave them in for minor things (like oil changes, tires, suspension, interior trim peeling lol) Honestly, depends on your SAs attitude. If you can buy a floor jack, jack stands, a 3/8" u-joint, ratchet, and a couple sockets, then its not too bad. But with 200-300$ per install/uninstall, it could get expensive.
__________________
|
Appreciate
0
|
12-26-2012, 02:33 PM | #12 |
2020 Z4 M40i - 2022 M4C Convt
3127
Rep 5,264
Posts
Drives: 2020 Z4 M40i - 2022 M4C Convrt
Join Date: Jun 2011
Location: Raleigh, NC - OIB, NC
iTrader: (0)
Garage List 1965 COBRA (FFR rep ... [8.57]
2023 Jeep Wrangler ... [9.50] 2009 Yamaha V-Star [0.00] Cars 2-BMW, 2-FORD, ... [0.00] 2023 Ford Expeditio ... [0.00] 2020 Z4 M40i [10.00] 2022 BMW M4C [7.25] 1998 FORD Ranger 4X4 [0.00] |
You did not say what mods you have only the you WANT downpipes. If you are not FBO you don't NEED them so its a waste of time & money. Any number of cars are in the low 12's high 11's without aftermarket downpipes.
Also you did not say what state you are in, DP's will not pass most emission tests.
__________________
Kevin
Dravit Gray, Black Leather, Moonlight Roof, Red Calipers 2022 M4C - 2020 Z4 M40i - 2023 FORD Expedition XLT Max 4X4 400BHP - 2009 V-Star - 1998 Ranger 4X4 5MT - 1965 Cobra (R) 5MT - 2023 Jeep Wrangler Sport S 6MT |
Appreciate
0
|
12-26-2012, 06:33 PM | #13 | |
Captain
84
Rep 703
Posts |
Quote:
|
|
Appreciate
0
|
12-26-2012, 06:35 PM | #14 | |
Captain
84
Rep 703
Posts |
Quote:
|
|
Appreciate
0
|
12-28-2012, 01:02 PM | #15 | |
Colonel
130
Rep 2,489
Posts
Drives: 2007 E92 SG 335i 6MT
Join Date: Apr 2011
Location: SW Florida
|
Quote:
And when you need to have warranty on your turbos/wastegate/whatever, take the downpipes off, and they cant blame it on that because you dont have them on there Although some SAs will be a jerk and bring it up . Just depends
__________________
|
|
Appreciate
0
|
12-28-2012, 03:00 PM | #16 |
Private
1
Rep 69
Posts
Drives: 2008 335XI
Join Date: Mar 2007
Location: Bergen County, NJ
|
I went in with downpipes/dci/bov recently and they didnt say a word. All I did was unflash the COBB. Depends on the dealer I guess.
|
Appreciate
0
|
Bookmarks |
|
|