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Increase horsepower and torque? IS38 with Stock Downpipe and APR IS38 file?

K

KDahlstrom

New member
Location
San Francisco
I'm looking to increase power (HP) and acceleration (TQ). Because California has strict emission laws and I fear failing smog, I don't want to upgrade my downpipe.

Has anyone swapped out IS20 for IS38 with stock downpipe? APR Stage IS38 file? Suggestions for more power?

Current setup:
2015 MK7 GTI (non PP) APR Stage 1, VWR R600 Intake, VWR Turbo Muffler Delete, VWR MQB Intercooler, GFB Diverter Valve, Remus Resonated Catback exhaust

I just bought a HPA Dogbone mount and by year's end I plan on buying Neuspeed RSe12 18x8.5 with Michelin Pilot Sport 4 S 245 40 18.
 
P

PacDawg

Drag Race Newbie
Location
Gilroy, CA
KDahlstrom said:
I'm looking to increase power (HP) and acceleration (TQ). Because California has strict emission laws and I fear failing smog, I don't want to upgrade my downpipe.

Has anyone swapped out IS20 for IS38 with stock downpipe? APR Stage IS38 file? Suggestions for more power?

Current setup:
2015 MK7 GTI (non PP) APR Stage 1, VWR R600 Intake, VWR Turbo Muffler Delete, VWR MQB Intercooler, GFB Diverter Valve, Remus Resonated Catback exhaust

I just bought a HPA Dogbone mount and by year's end I plan on buying Neuspeed RSe12 18x8.5 with Michelin Pilot Sport 4 S 245 40 18.
Click to expand...

Why not just install downpipe and keep stock so you can swap out when it's time for emissions? New cars don't even need to be smogged till like after 6 years. Downpipe and tune are the two best mods for this car.
 
Crud_muffin

Crud_muffin

Ready to race!
Location
US
Car(s)
e-Golf
Op, seems you've been preparing for the days of stage 3 - intercooler, intake, etc. Nice! Just a thought, does Cali do visual inspection? My APR dealer tells me the Nuespeed and AWE catted downpipes run cel-free and pass OBD2 readiness.
 
K

KDahlstrom

New member
Location
San Francisco
PacDawg said:
Why not just install downpipe and keep stock so you can swap out when it's time for emissions? New cars don't even need to be smogged till like after 6 years. Downpipe and tune are the two best mods for this car.
Click to expand...

I was under the assumption that I had to get it smogged sooner. I bought it used (1400miles) in 2015. I'll look into adding a downpipe.
 
crxgator

crxgator

Autocross Champion
Location
Raleigh, NC
Car(s)
All the MQBs
I ran an is38, jb4 and stock downpipe. Made about 315 whp.


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K

KDahlstrom

New member
Location
San Francisco
Crudulous said:
Op, seems you've been preparing for the days of stage 3 - intercooler, intake, etc. Nice! Just a thought, does Cali do visual inspection? My APR dealer tells me the Nuespeed and AWE catted downpipes run cel-free and pass OBD2 readiness.
Click to expand...

To my knowledge California does do a visual inspection. I bought VWR R600 intake because of it's function but also it's OEM look. I'm going to try to pass the visual with it installed. I will however swap out my Spulen intake hose though. I'll look into those downpipes. Thanks
 
crxgator

crxgator

Autocross Champion
Location
Raleigh, NC
Car(s)
All the MQBs
I was JB4 only. Definitely worth the upgrade over the is20.


Sent from my iPhone using Tapatalk
 
G

GTI Dude 11

Passed Driver's Ed
Location
tennessee
Car(s)
gti
I have the is38, all supporting mods, except the downpipe and I’m on the APR is38 tune. I was apr low output stage 1 before. Very large difference in power
 
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