08-18-2014, 10:16 PM | #3 |
riding on rails
117
Rep 655
Posts |
As with any performance modification tuning the car will get the most out of the mod -- but it's not required.
You will free up the exhaust allowing the turbos to 'spin up' faster and the sound through the exhaust will be amazing. As for the CEL you are going to be stuck with that for now as there are no hacks/fixes/coding that can be done to remedy it. PP-Performance has 'software' to remove the CEL but it depends where you are located otherwise you have to ship them your DMIs (or ship them your car). I have catless downpipes on my car (I love them) and would never go back to catted downpipes. At first I was so worried about the CEL but after you hear the turbos spin up and spool down through the exhaust pipes you will soon give a shit less about the CEL. Brian
__________________
/// 2o13 m6 f13 . jb4 tuned . meth injected . msr intake . 21" adv1 wheels . eisenmann race w/ catless DPs . vorsteiner full aero . accuair e-level w/ bagged KW V3 struts . dinan sways . bel stir+ w/ alp jammer . jl audio subs
/// 2o13 x5m e70 . velos tuned . 22" adv1 wheels . dropped on kw variant3 coilovers . passport 9500ci radar & jammer. gets groceries fast |
Appreciate
0
|
08-19-2014, 04:48 AM | #4 |
Second Lieutenant
34
Rep 273
Posts |
+1 with Brian,I still have stock exhaust on my car for now but the catless down pipes still sounds amazing and you can hear the turbo's so much better.
__________________
2014 M6 Gran Coupe, Strasse Forged 22", AMS DP, H&R Springs, Vorsteiner Carbon Aero Lip, IND body parts, side markers, carbon mirrors and spoiler, carbon diffuser.
|
Appreciate
0
|
08-19-2014, 08:11 AM | #5 |
Major
107
Rep 1,027
Posts |
So I take it that in Virginia they aren't checking emissions on state inspection? Maybe that is because everyone is required to drive 55 still or go to jail? That is a strange combination, don't care about emissions but nazi enforcement of speed limits.
|
Appreciate
0
|
08-19-2014, 01:41 PM | #6 | |
Banned
52
Rep 664
Posts |
Quote:
Your check engine light will be on. You will not know if your engine develops another issue because your light will already have been on. Your lambda control will not be correct because of the ECU's trying to figure out why the rear oxygen sensors are reading off the charts. Its up to you what you want to do. Does it sound cool with them ? Yes. Is it good for your engine ? No You should call software tuners and get their honest opinion on this. Exhaust companies will tell you to buy their product to have a sale. They are not the software engineers that develop and monitor the operating values while creating a software tune. Good luck Just my opinion on the subject |
|
Appreciate
0
|
08-19-2014, 03:44 PM | #7 |
Second Lieutenant
34
Rep 273
Posts |
wrsbmw yeah Virginia do have some crazy laws and I am pretty sure catless downpipes are against emission laws. I just got lucky the car was new and I guess they didn't really inspect the car just slapped the inspection sticker on.
__________________
2014 M6 Gran Coupe, Strasse Forged 22", AMS DP, H&R Springs, Vorsteiner Carbon Aero Lip, IND body parts, side markers, carbon mirrors and spoiler, carbon diffuser.
|
Appreciate
0
|
08-19-2014, 04:08 PM | #8 |
Major
107
Rep 1,027
Posts |
Ah, OK. I think you might have an issue the next time your sticker comes up. New cars in Texas get a two year sticker so I could have done catless and then next May have to deal with it. My SA told me he had one guy with a M3 that runs catless and that guy gets the pipes replaced to pass inspection and then puts the catless back on every year. That is $2000 worth of BMW labor each year so he can run catless. I can't see it, thus I opted for the Noelle's which won't fail inspection but did come at a high cost, $4500. They sound great and they also work within the Dinan Tune parameters because Steve Dinan has them on his car.
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|