GOLFMK8
GOLFMK7
GOLFMK6
GOLFMKV
VW GTI MKVI Forum / VW Golf R Forum / VW Golf MKVI Forum / VW GTI Forum - Golfmk6.com



Go Back   VW GTI MKVI Forum / VW Golf R Forum / VW Golf MKVI Forum / VW GTI Forum - Golfmk6.com > Technical Topics > GTI 2.0T Engine / Drivetrain / Exhaust / Tunes


Reply
 
Thread Tools Search this Thread Display Modes
Old 02-08-2018, 01:25 PM   #1
burnsbp
Passed Driver's Ed
 
Drives: 2013 GTI
Join Date: Dec 2017
Location: Denver
Posts: 12
Downpipe questions

Hello all Iím new to the car scene. I have a mk6 gti 4 door MT6. I currently have a cts turbo intake and a forge blowoff. I recently just revived my down pipe and was planning on installing it today but a friend had a comcen with the downpipe sense I am untuned and have a blowoff. Just asking if you guys have any input on this as I am unsure. Thank you
burnsbp is offline   Reply With Quote
Old 02-08-2018, 01:35 PM   #2
jay745
Mod Flanders
 
jay745's Avatar
 
Drives: 2013 CW GTI Wolfsburg (racecar)
Join Date: Sep 2013
Location: Chicago
Posts: 19,491
It might run like crap until you get tuned. You won't see much of a gain without the tune anyways.
__________________
Hit me up for VagCom in Chicago
Click >here< for my build thread.
I'll do your 40k service for much cheaper than a dealer.
jay745 is offline   Reply With Quote
Old 02-08-2018, 01:45 PM   #3
burnsbp
Passed Driver's Ed
 
Drives: 2013 GTI
Join Date: Dec 2017
Location: Denver
Posts: 12
I’m okay with it running bad as long as I’m not blowing the motor or causing damage
burnsbp is offline   Reply With Quote
Old 02-08-2018, 02:22 PM   #4
lilonespaz
Formula 2 Driver
 
lilonespaz's Avatar
 
Drives: 2011 Candy White 3-Door GTi DSG
Join Date: Jun 2013
Location: Central Florida
Posts: 6,060
i ran a turbo back exhaust for like a week before getting tuned. No issues besides the CEL from the downpipe. Other than that it ran okay
__________________
Quote:
Originally Posted by Blakcard View Post
listen to your gut....And lilonespaz
Quote:
Originally Posted by Laimface View Post
hahaha why am I your signature
Quote:
Originally Posted by damagi123 View Post
just like god intended. he didnt kill off the dinosaurs for their sweet sweet bone juice to have it go getting wasted by eco-obsessed torque thieves.
lilonespaz is offline   Reply With Quote
Old 02-08-2018, 07:31 PM   #5
BudgetPhoenix
FIA World Rally Car Champion
 
Drives: 09 GLI
Join Date: Jul 2016
Location: Bay Area
Posts: 608
Quote:
Originally Posted by lilonespaz View Post
i ran a turbo back exhaust for like a week before getting tuned. No issues besides the CEL from the downpipe. Other than that it ran okay
Ive tried flashing back to stock with my turbo back exhaust. It ran perfectly fine but threw o2 sensor lean codes even with spacers.
BudgetPhoenix is offline   Reply With Quote
Old 02-08-2018, 08:40 PM   #6
Allchokedup
Autocross Champion
 
Drives: 2011 gti stage 2 /stg2 sb daily
Join Date: Aug 2017
Location: Dallas
Posts: 111
Same car, i ran dp on stage 1 didnt see any issues. Local tuner told me stay out of throttle because it might lean out..mejhhh went stage 2 pewpew
Allchokedup is offline   Reply With Quote
Old 02-09-2018, 07:33 AM   #7
CHerna
FIA World Rally Car Champion
 
CHerna's Avatar
 
Drives: 2012 DBP GTI 2 Door M/T
Join Date: Mar 2016
Location: SE Michigan
Posts: 504
Quote:
Originally Posted by Allchokedup View Post
Same car, i ran dp on stage 1 didnt see any issues. Local tuner told me stay out of throttle because it might lean out..mejhhh went stage 2 pewpew
that's a myth. well, with these cars anyway.
__________________
2012 Golf GTI 2 Door - DBP - 6-Speed M/T
| Stratified Tuned | Eurojet TBE | Integrated Engineering Stage 2 CAI | R8 Coil-Packs | GFB DV+ | BC Racing BR Series Coil-Overs | Rotiform KPS | OEM Lagunas | Nitto NT555 G2 |
IG: @MightyCarlitos
CHerna is offline   Reply With Quote
Old 02-09-2018, 09:49 AM   #8
lilonespaz
Formula 2 Driver
 
lilonespaz's Avatar
 
Drives: 2011 Candy White 3-Door GTi DSG
Join Date: Jun 2013
Location: Central Florida
Posts: 6,060
Quote:
Originally Posted by CHerna View Post
that's a myth. well, with these cars anyway.
Yeah the only CEL the downpipe causes is a faulty O2 Sensor/Cat Efficiency because sensor bank 2(on CCTA) or sensor bank 3(CBFA) are only there to check how efficent the CAT is cleaning the exhaust gases. When you change the DP the gases pass through the new cat(or lack there of a cat) with higher levels of "bad" gas in them which throws the code that your cat isnt working efficiently(or scrubbing the exhaust of those gases).

Sensor bank 1/2 (depending on motor) is the one that has to do with fueling and AFR which checks for how much fuel is in the exhaust gas mixture. This can provide a lean out code but only if you put a spacer on it. The only one that should ever get a space is the LAST O2 sensor furthest from the turbo the other sensors should not be touched as those can cause your car to run lean/rich.
__________________
Quote:
Originally Posted by Blakcard View Post
listen to your gut....And lilonespaz
Quote:
Originally Posted by Laimface View Post
hahaha why am I your signature
Quote:
Originally Posted by damagi123 View Post
just like god intended. he didnt kill off the dinosaurs for their sweet sweet bone juice to have it go getting wasted by eco-obsessed torque thieves.
lilonespaz is offline   Reply With Quote
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 01:19 AM.


Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.