02-12-2020, 05:17 PM | #1 |
Banned
832
Rep 674
Posts |
Down pipe no tune ?
I was going to add the Autowerkes Downpipe and ER charge to my 16' 235i with no tune.
Speed shop said probably good idea to get Stage 1 with the downpipe. Any reason this would be neccesary ? Get the more power part. (they are going to run dyno for air/fuel ratio wide open to make sure safe) Could the addl fuel requirements max out what the ECU is programmed to auto compensate ? Still working on whether I get new 8" rims and 235's all the way around, or just add 225 PS4 to stock rims...either way on RFT's and not sure Stage 1 is good idea. Any one run JUST a Fabspeed or Autowerkes catted downpipe only with any issues ? Does a tune change anything if "not using" all the time ? fuel/air etc Thanks for info |
02-12-2020, 05:54 PM | #2 |
Second Lieutenant
132
Rep 237
Posts |
That's what I'm going to do - catted dp and charge pipes/ic with no tune for a couple months. I wasn't 100% sure of this answer, but typically modern cars can go plus or minus 25% fueling, so was just going to run it and watch trims on a scan tool. I wouldn't do an intake without a tune but that's just my opinion, changing MAF housing geometry and such. The biggest question I have is about the intercooler though, I'm not sure if adding physical volume to the intake after the MAF has an effect on dme strategy/control
|
Appreciate
0
|
02-12-2020, 06:05 PM | #3 | |
Banned
832
Rep 674
Posts |
Quote:
I guess if they hook up and ECU/fuel ratio at max is good, no issue. |
|
Appreciate
0
|
02-12-2020, 09:10 PM | #4 |
New Member
0
Rep 7
Posts
Drives: 2016 BMW M235i
Join Date: Dec 2019
Location: Fredericksburg
|
I have the full FBO without the tune cos I haven’t decided which one I want to do. But the car drives and sounds great with the hardware without the tune right now. I went with Fabspeed catted DP, CSF intercooler and MP exhaust. Injen intake, stock charge pipe
|
Appreciate
0
|
02-13-2020, 01:31 AM | #5 |
First Lieutenant
97
Rep 373
Posts |
do an ots bm3 or mhd map flash the stage 2 91 perfect for daily
__________________
'14 F20 M135i EWG FBO:// INJEN INTAKE // PURE INLET// TURBOSMART BOV DUAL PORT // //CSF INTERCOOLER // ER CP // SNOW S2.5 METH KIT // B58TU HPFP // NGK 97506 // ER DP // TMSS MID PIPE //MPE // MPBBK // UR STRUT BRACE // BM3 CUSTOM JORDAN E85 TUNE // XHP STAGE 3 // |
Appreciate
0
|
02-13-2020, 10:43 AM | #6 |
Joint Chiefs of Staff
24172
Rep 190,750
Posts |
You can install the downpipe no tune without any issues. Just ignore the CEL .
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 |
Appreciate
0
|
02-13-2020, 10:44 AM | #7 | |
Joint Chiefs of Staff
24172
Rep 190,750
Posts |
Quote:
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 |
|
Appreciate
0
|
02-13-2020, 12:05 PM | #8 |
Banned
832
Rep 674
Posts |
|
Appreciate
0
|
02-13-2020, 12:09 PM | #9 |
Major General
5551
Rep 5,369
Posts |
I ran my HJS Euro 6 catted DP for over a year without a tune. No CELs or other problems. I then ran it with the Dinan piggyback in Stage 1 for 6 months and no issues. I'm now running with the Dinan piggyback in Stage 2. Again, no issues. The Dinan piggyback isn't designed specifically to run with a DP either.
The primary reason tuners recommend DPs with Stage 2 tunes and higher is because of the elevated exhaust gas temps when running higher boost/timing, etc. That heat can kill the stock cats at a quicker pace than stock. It's not because the tuners are doing something special to the tune to account for the DP to unleash more power.
__________________
The forest was shrinking, but the Trees kept voting for the Axe, for the Axe was clever and convinced the Trees that because his handle was made of wood, he was one of them.
|
Appreciate
0
|
02-13-2020, 12:57 PM | #10 |
Joint Chiefs of Staff
24172
Rep 190,750
Posts |
Depends on the downpipe. Active Autowerke and Fabspeed will not throw a code even if you do not have a tune.
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 |
Appreciate
0
|
02-13-2020, 01:13 PM | #11 |
Banned
832
Rep 674
Posts |
yea I have a hard time reconciling why a Fabspeed DP is $500 more than AAWerkes, and a ER Intercooler is $500 more than AAWerkes...guess I need to dig deeper...production seems the same, quality similar...
Why spend $1000 more for Fabspeed DP and ER Intercooler combo ? |
Appreciate
0
|
02-13-2020, 01:58 PM | #12 | |
Major General
5551
Rep 5,369
Posts |
Quote:
With respect to catted DPs, you get what you pay for. The $1,500 Fabspeed (200 cell) and HJS DP (300 cell) catted downpipes use the best catalytic converters on the market. They are the most efficient, longest lasting, and generally free of CELs (HJS is CEL free because of its higher cell count and design). The AA and others use cheaper cats. If you buy a super cheap catted DP, you can be certain that the cat will be of poor quality (may degrade quickly), will likely not fit right, and will definitely throw a CEL. The $1000-1100 AA catted DP is new to the market and hardly anyone is running them. The verdict is still out on the quality and lack of CELs. I learned my lesson decades ago when first modding cars. Aftermarket companies have a very hard time matching OEM quality and fitment. I'd say you've got a 20% chance that your aftermarket part will fit exactly like stock and if it does, you've likely paid a premium for it. This especially goes for DPs,, intercoolers, and charge pipes with these cars. By cheap and changes are you'll have quality and fitment issues. I am entirely happy paying $1500 for my HJS Euro 6 DP knowing that it fit like stock, looks nearly like stock, performs as advertised, and will last as long as the stock DP. I'll be able to recoup more money on resale too because it's highly desired.
__________________
The forest was shrinking, but the Trees kept voting for the Axe, for the Axe was clever and convinced the Trees that because his handle was made of wood, he was one of them.
|
|
Appreciate
0
|
02-14-2020, 10:19 AM | #14 | |
Second Lieutenant
132
Rep 237
Posts |
Quote:
|
|
Appreciate
0
|
02-15-2020, 01:27 PM | #15 | |
Joint Chiefs of Staff
24172
Rep 190,750
Posts |
Quote:
Hundreds of these pipes are in use without a single CEL issue. Its also using the GESI cats which is a high quality cat as well.
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 |
|
Appreciate
0
|
02-17-2020, 08:28 AM | #16 | |
Banned
832
Rep 674
Posts |
Quote:
I know I know just pull trigger on MHD lol |
|
Appreciate
0
|
02-17-2020, 11:14 AM | #17 |
Joint Chiefs of Staff
24172
Rep 190,750
Posts |
Or bootmod3
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 |
Appreciate
0
|
03-06-2020, 08:14 AM | #18 |
Driver - Autocross
74
Rep 178
Posts |
I heard this (could) have the car run lean witch can be scary but I have no proof this is true, I had my VRSF catless downpipe put in with only a MHD stage 1 tune and it was fine.
|
Appreciate
0
|
03-06-2020, 08:48 AM | #19 | |
Private
19
Rep 80
Posts |
Quote:
AA is absolutely top notch quality. I don't see the point to take them to argue about poor quality this is is a non-sense. |
|
Appreciate
0
|
04-10-2020, 03:40 PM | #20 |
Banned
832
Rep 674
Posts |
Ordered AA downpipe and ER Chargepipe, and the Rogue shifter (thx !!!)
Now, AS3+ on stock rims or new 18/8.5 square with PS4 (AS3+ I'd leave on year round, new rims and tires I'd have set for winter...even if crappy RFT. One is way more $$) Last edited by 4Hockey4; 04-10-2020 at 03:47 PM.. |
Appreciate
1
K8_M235i476.50 |
05-08-2020, 03:36 PM | #21 |
Banned
832
Rep 674
Posts |
Picked up 235 today with ER Charge and AA downpipe. It was sprinkling, but nice jump in pull. Final dyno had WHP at 321. You can really feel in mid range.
Also shop noticed torque curve about 500 rpms (4,500) sooner. No CEL etc...but as they rec'd, need to get rid of RFT soon Last edited by 4Hockey4; 05-08-2020 at 04:06 PM.. |
Appreciate
1
H2O_Doc511.50 |
05-09-2020, 11:11 AM | #22 | |
Joint Chiefs of Staff
24172
Rep 190,750
Posts |
Quote:
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|