STI exhaust - Page 7

scubadoober · 06-26-2011, 04:38 AM

Quote:

Originally Posted by Kumachn

Measured an '06 STi Exhaust I just bought:

...........................FXT.............STI
Tip:....................6 5/8"..........7 1/2"
Muffler:..............17 1/8"........16 1/2"
Overall length:.....46 1/2"........
midpipe...............49 3/4"........49 1/2"

Awesome! Thank you for your measurements, if only we had more to compare against.

apalacpac · 03-21-2012, 10:31 PM

I have the axelback, will the down or midpipe make a difference? How about the cat converter?

scubadoober · 03-22-2012, 09:24 AM

he downpipe is exactly the same (both pieces of it). The midpipe which is what would make it a full catback has a smaller resonator and will give you a little more low bass. As for the catalytic converter they are the same as the two that are in your downpipe sections.

sea otter 99 · 11-07-2012, 09:47 AM

Anyone with an STi catback gone from an aftermarket DP back to the stock DP? Currently at protune stage 2 with Cobb catted DP - considering removing the Cobb and going back to cobb stage 1 due to persistent wastegate flutter. Just wondering if going back to the stock downpipe will also reduce the annoying bassy vibration (subwoofer effect) of the sti catback, or if this noise is more connected with the smaller resonator on the sti midpipe. If I do go back to Stage 1, trying to decide if I keep all or part of the sti catback. My car is an 04 XT with a 2007 STi catback. Do like the rumble and look of the catback, just not the sub effect. No fitment issues with kb xl hangers.

sea otter 99 · 11-15-2012, 03:42 PM

Update: STi midpipe removed, FXT midpipe put back on, bolted to STi axleback .....now no more annoying bass drone/buzz at low revs, just the good deep rumble I was looking for. Wish I could get rid of the wastegate flutter but it is easier to live with now as my eardrums arent bleeding at every red light. Seems most folks fit the entire STi catback with no issues, but my car didnt like it. Length and separation from bumper perfect with KB XL hangers.

White Comet · 01-06-2013, 07:41 AM

Hey guys,

thinking of getting a mint Spec C Type RA-R Stainless steel Catback exhaust...just wondering if you guys know much about it since the net doesn't have much. $350 is the price...thoughts? Thanks

amorgan93 · 01-09-2013, 09:30 PM

the STI cat-back becomes much louder with a aftermarket downpipe & catless. My 04 XT has 05 STI cat-back, its semi-quiet when driven gently, but if i push it it gets much louder... one of my friends who lives on a curvy road said they heard my car coming from quite a bit away, and that was over the noise of the 2009 328i i was chasing (if youve ever heard one, they are actually pretty loud at high rpms). In my opinion, its a perfect setup for a sleeperish car like an XT.

Smokin_Joe · 01-10-2013, 09:37 AM

Quote:

Originally Posted by amorgan93

the STI cat-back becomes much louder with a aftermarket downpipe & catless. My 04 XT has 05 STI cat-back, its semi-quiet when driven gently, but if i push it it gets much louder... one of my friends who lives on a curvy road said they heard my car coming from quite a bit away, and that was over the noise of the 2009 328i i was chasing (if youve ever heard one, they are actually pretty loud at high rpms). In my opinion, its a perfect setup for a sleeperish car like an XT.

mine was quiet..3" catless DP w/ GS 3"-2.5" adapter (with gaskets on both side of the adapter) into a stock STI cat back with STI resonator...it was relatively quiet

I think if the resonator was removed in teh cat back, it would be a lot louder...
Joe

drcolt · 01-10-2013, 06:12 PM

Cobb Catted dp, deleted resonator, straight 2.5'' back 05 Sti muffler. It's got a nice light sound, turbo whistle can be heard at the tailpipe. The Sti tip had to be cut and extended to clear to bumper properly. I had the Sti pipe cut right off and just had one custom fit to suit.
My wife drives it daily and hasn't complained about any overly annoying sound. I personally would like it louder. But it's her daily driver, and only my weekender.
No up pipe yet. If it gets louder, I always have the option to add in a resonator.

Fozzie_bear · 04-19-2013, 06:10 AM

Quote:

Originally Posted by White Comet

Hey guys,

thinking of getting a mint Spec C Type RA-R Stainless steel Catback exhaust...just wondering if you guys know much about it since the net doesn't have much. $350 is the price...thoughts? Thanks

BUY IT! specially as its S/S. i got my 03 STi system for $150! (AUD)

crxgator · 05-02-2013, 02:45 PM

Maybe I missed it, but what are people doing about the third hanger on the muffler (the one on the rear). It seems like it is too short to reach the hanger on my FXT. or maybe it's my muffler?

phantomfozzy · 05-02-2013, 02:52 PM

Quote:

Originally Posted by crxgator

Maybe I missed it, but what are people doing about the third hanger on the muffler (the one on the rear). It seems like it is too short to reach the hanger on my FXT. or maybe it's my muffler?

Ignore it. With stiff hangers and a solid connection to the midpipe the muffler won't go anywhere.

If you must use it, cut it off and weld it back on so it reaches the chassis hanger.

robbied · 05-08-2013, 11:09 AM

Does anyone know if a JDM STI GD 7/8 (02-05) catback is the same as the USDM STI catbacks you guys are fitting on your XT's?

03-22-2012, 09:24 AM	#93 (permalink)
scubadoober Forum Member Thread Starter Join Date: May 2008 Posts: 2,543 Location: Johnson City, TN Car Year: 2004 Car Model: fxt A/T Gallery: 0 Feedback Score: 6 reviews	he downpipe is exactly the same (both pieces of it). The midpipe which is what would make it a full catback has a smaller resonator and will give you a little more low bass. As for the catalytic converter they are the same as the two that are in your downpipe sections. __________________ 2004 FXT A/T (vf43 08 STI TMIC)

01-06-2013, 07:41 AM	#96 (permalink)
White Comet Forum Member Join Date: Jul 2010 Posts: 154 Location: Toronto, Ontario, Canada Gallery: 0 Feedback Score: 1 reviews	Hey guys, thinking of getting a mint Spec C Type RA-R Stainless steel Catback exhaust...just wondering if you guys know much about it since the net doesn't have much. $350 is the price...thoughts? Thanks __________________ MY08 SG FXT \| MY10 DGM FX \| MY09 QSM Legacy 3.0R Last edited by White Comet; 01-06-2013 at 07:50 AM.

01-10-2013, 06:12 PM	#99 (permalink)
drcolt Forum Member Join Date: Aug 2011 Posts: 97 Location: TORONTO, CANADA Car Year: 05 Car Model: Forester XT Transmission: auto Gallery: 0 Feedback Score: 0 reviews	Cobb Catted dp, deleted resonator, straight 2.5'' back 05 Sti muffler. It's got a nice light sound, turbo whistle can be heard at the tailpipe. The Sti tip had to be cut and extended to clear to bumper properly. I had the Sti pipe cut right off and just had one custom fit to suit. My wife drives it daily and hasn't complained about any overly annoying sound. I personally would like it louder. But it's her daily driver, and only my weekender. No up pipe yet. If it gets louder, I always have the option to add in a resonator. __________________ DR colt

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

03-21-2012, 10:31 PM	#92 (permalink)
apalacpac Forum Member Join Date: Feb 2011 Posts: 226 Location: Seattle, Wa Car Year: 2006 Car Model: Forester 2.5 X Gallery: 0 Feedback Score: 0 reviews	I have the axelback, will the down or midpipe make a difference? How about the cat converter?

11-07-2012, 09:47 AM	#94 (permalink)
sea otter 99 Forum Member Join Date: Feb 2012 Posts: 26 Location: Calgary Car Year: 2004 Car Model: Forester XT Transmission: 5MT Gallery: 0 Feedback Score: 1 reviews	Anyone with an STi catback gone from an aftermarket DP back to the stock DP? Currently at protune stage 2 with Cobb catted DP - considering removing the Cobb and going back to cobb stage 1 due to persistent wastegate flutter. Just wondering if going back to the stock downpipe will also reduce the annoying bassy vibration (subwoofer effect) of the sti catback, or if this noise is more connected with the smaller resonator on the sti midpipe. If I do go back to Stage 1, trying to decide if I keep all or part of the sti catback. My car is an 04 XT with a 2007 STi catback. Do like the rumble and look of the catback, just not the sub effect. No fitment issues with kb xl hangers.

11-15-2012, 03:42 PM	#95 (permalink)
sea otter 99 Forum Member Join Date: Feb 2012 Posts: 26 Location: Calgary Car Year: 2004 Car Model: Forester XT Transmission: 5MT Gallery: 0 Feedback Score: 1 reviews	Update: STi midpipe removed, FXT midpipe put back on, bolted to STi axleback .....now no more annoying bass drone/buzz at low revs, just the good deep rumble I was looking for. Wish I could get rid of the wastegate flutter but it is easier to live with now as my eardrums arent bleeding at every red light. Seems most folks fit the entire STi catback with no issues, but my car didnt like it. Length and separation from bumper perfect with KB XL hangers.

01-09-2013, 09:30 PM	#97 (permalink)
amorgan93 Forum Member Join Date: Aug 2011 Posts: 97 Location: North Carolina Car Year: 2004 Car Model: Forester XT Transmission: 4EAT Gallery: 5 Feedback Score: 0 reviews	the STI cat-back becomes much louder with a aftermarket downpipe & catless. My 04 XT has 05 STI cat-back, its semi-quiet when driven gently, but if i push it it gets much louder... one of my friends who lives on a curvy road said they heard my car coming from quite a bit away, and that was over the noise of the 2009 328i i was chasing (if youve ever heard one, they are actually pretty loud at high rpms). In my opinion, its a perfect setup for a sleeperish car like an XT.

05-02-2013, 02:45 PM	#101 (permalink)
crxgator Forum Member Join Date: Nov 2012 Posts: 62 Location: Kingston, NY Car Year: 2004 Car Model: Forester XT Transmission: Manual Gallery: 0 Feedback Score: 1 reviews	Maybe I missed it, but what are people doing about the third hanger on the muffler (the one on the rear). It seems like it is too short to reach the hanger on my FXT. or maybe it's my muffler?

05-08-2013, 11:09 AM	#103 (permalink)
robbied Forum Member Join Date: Nov 2012 Posts: 32 Location: Toronto Car Year: 2005 Car Model: Forester XT Transmission: 4EAT Gallery: 0 Feedback Score: 0 reviews	Does anyone know if a JDM STI GD 7/8 (02-05) catback is the same as the USDM STI catbacks you guys are fitting on your XT's?

Remove Advertisements Sponsored Links
SubaruForester.org Advertisement