Upgrading Turbo - TriStateTuners.com :: Home of Tristate Auto Enthusiast

PoorMan'sR · 04-09-2009, 10:34 PM

So i feel like i would get a ton of mixed responses on nasioc and i trust the people on tst more, i'm upgrading to a vf39, have the pinks, going to be ordering the fuel pump within the next week, already on the car is an sti uppipe, 3inch catless downpipe, sti topmount, and an sti catback, so my question is do you guys things its absolutely necessary to get a 3 inch catback exhaust? i want it to be efficient, but i want it to be quiet.

aaronnn · 04-12-2009, 12:46 AM

nope its not absolutely necessary. It wont make a noticeable difference between the stock STI catback and an aftermarket 3 inch. Getting rid of the cats will do more than enough of getting rid of restrictions.

PoorMan'sR · 04-14-2009, 02:13 PM

bump, thanks for responding man

CHAOS · 04-14-2009, 02:15 PM

quiet and powerful dont really go hand in hand matt.

PoorMan'sR · 04-14-2009, 02:20 PM

Quote:

Originally Posted by CHAOS

quiet and powerful dont really go hand in hand matt.

haha i know i know, i've just seen so many mixed things on the ability of the sti cat back with what it can do and not do, im just tryin to get my ish straight

NickRSwrx · 04-14-2009, 02:33 PM

Well, I would just keep it on there for now. Add all of your other goodies. Then later on, in a year or so if you want to upgrade a few things, add a full exhaust and some other things, get retuned and bam, all new car

RyanG · 04-14-2009, 03:18 PM

fyi we have seen upwards of 30hp going from an "sti" cat back to a full 3"

PoorMan'sR · 04-14-2009, 03:28 PM

Quote:

Originally Posted by AREA1320

fyi we have seen upwards of 30hp going from an "sti" cat back to a full 3"

that's the type of thing i was looking for, thank you

06WRBScoob · 04-14-2009, 04:32 PM

Catback is a no brainer, let that thing breathe!

Kjott21 · 04-17-2009, 05:26 PM

Quote:

Originally Posted by AREA1320

fyi we have seen upwards of 30hp going from an "sti" cat back to a full 3"

Was that with a vf39 or a big turbo like a GT35r/Dom 3?

RyanG · 04-17-2009, 11:04 PM

actually the last car we did it to was a stock WRX. Just had a dp and a UTEC. 24hp uncorked when the exhaust was pulled

namdoogwerdna · 04-18-2009, 12:20 AM

Wow. That's awesome.

Kjott21 · 04-18-2009, 01:38 AM

Quote:

Originally Posted by AREA1320

actually the last car we did it to was a stock WRX. Just had a dp and a UTEC. 24hp uncorked when the exhaust was pulled

Wow.. that is a pretty significant restriction. I didn't think that it would make that big a difference for a stage 2 car.

04-14-2009, 03:18 PM	#7
RyanG Tri-State Post Whore Join Date: Jan 2005 Location: Easton, PA Member #63 iTrader: (1)	fyi we have seen upwards of 30hp going from an "sti" cat back to a full 3" __________________ I am Area1320 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

04-17-2009, 11:04 PM	#11
RyanG Tri-State Post Whore Join Date: Jan 2005 Location: Easton, PA Member #63 iTrader: (1)	actually the last car we did it to was a stock WRX. Just had a dp and a UTEC. 24hp uncorked when the exhaust was pulled __________________ I am Area1320 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

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04-12-2009, 12:46 AM	#2
aaronnn Tri-State Aficionado Join Date: Mar 2009 Location: Jersey City, NJ Member #12041 My Ride: 2008 Legacy GT, 2001 Impreza 2.5RS, 2003 Acura 3.2TL iTrader: (0)	nope its not absolutely necessary. It wont make a noticeable difference between the stock STI catback and an aftermarket 3 inch. Getting rid of the cats will do more than enough of getting rid of restrictions.

04-14-2009, 02:15 PM	#4
CHAOS TST Ruined My Life! Banned Join Date: Jun 2006 Member #2120 My Ride: 1984 Cadillac Brougham iTrader: (1)	quiet and powerful dont really go hand in hand matt.

04-14-2009, 02:33 PM	#6
NickRSwrx Tri-State Aficionado Join Date: Aug 2007 Location: Warrington@17lbs Member #5457 My Ride: 01RS 317awhp/277ftlb iTrader: (0)	Well, I would just keep it on there for now. Add all of your other goodies. Then later on, in a year or so if you want to upgrade a few things, add a full exhaust and some other things, get retuned and bam, all new car

04-14-2009, 04:32 PM	#9
06WRBScoob Tri-State Addict Join Date: Jun 2008 Member #8007 My Ride: 06 WRB WRX VF34 iTrader: (0)	Catback is a no brainer, let that thing breathe!