stock exhaust vs. aftermarket cat-back
06-08-2004 | 10:39 AM
#1
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stock exhaust vs. aftermarket cat-back
as the title says...i tried searching but got nothing really conclusive...would it be worth it to go to an aftermarket cat back on a basically stock STi? im looking at the hks hi power, but have no real plans for any other motor mods...any gains by the cat-back or should i just invest that 600 or so dollars into something else? any input would be appreciated..thanks!
06-11-2004 | 09:33 PM
#2
It's really a personal choice. A catback will give you a little bit power gain (10-20hp), nothing too crazy. Like someone on the board said: a 3" catback is a 3" catback, there is really not much difference in performance among different brands. Most of the aftermarket catbacks' sound are louder and the look is more aggressive and people like that. if you go for titanium, it will save you 20+ pounds of weight compare to stock. If you get a exhaust with a huge tip, it may attracts a lot of attention from cops. In CA, noise level of 95db is the limit, and people with loud and big a$$ looking exhaust get pulled over all the time. I believe HKS hi power is a loud exhaust.
I went for a more stock looking exhaust - Perrin twin tip. I really like it but it's bit on the loud side.
I went for a more stock looking exhaust - Perrin twin tip. I really like it but it's bit on the loud side.
06-14-2004 | 08:29 AM
#5
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From: Corpus Christi, Texas
Car Info: 2002 Honda S2000
Actually HKS Hi-Power is legal in all 50 states, and you can have HKS send you papers that say so too, with a free flowing exhaust you will notice alittle bit quick turbo spool up also.
06-15-2004 | 12:23 AM
#6
Dahveed aka Robin Hood
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Posts: 4,793
From: Robbin' the Hood (Claycord)
Car Info: (RIP) '04 STi Silver
I picked up a Tanabe Super Medallion Racing, for the WRX (not the larger-piping version for the STi), for my STi, and I'm very happy with the sound and throttle response mainly.
It added some pep, but nothing crazy. I'd definately recommend a catback for an otherwise stock STi, and leave a turboback for going into stage modifications...
It added some pep, but nothing crazy. I'd definately recommend a catback for an otherwise stock STi, and leave a turboback for going into stage modifications...
06-18-2004 | 12:24 PM
#7
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thanks for the replies! i had another question too, i was reading on the nasioc board about resetting the ecu once a cat back is installed...i also read that thread about it but the people were back and forth, some said yes some said no...is resetting the ecu something i should do when installing the exhaust? and would that have any negative effects on idle or drivability? thanks again
06-30-2004 | 04:31 PM
#9
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can anyone else chime in? also does anyone know where i could get a hold of the sti titanium axleback? i saw some pics of it and i thought it was real nice...even though the price tag is steep...it might be jus what im lookin for since i dont plan on any engine mods, just all suspension other than either a cat back or axleback
07-06-2004 | 12:13 AM
#10
Originally Posted by ScoobyGDSTi
also does anyone know where i could get a hold of the sti titanium axleback?
07-06-2004 | 03:29 AM
#11
Angry Dan
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From: www.turboculture.com
Car Info: 05 Evo VIII
Originally Posted by ScoobyGDSTi
can anyone else chime in?
Get a full turbo-back...a down-pipe and cat-back exhaust. <---this is where the HP gain is at.
If you just want sound and looks just get an axle back exhaust and save some $$$
07-06-2004 | 09:38 PM
#13
Originally Posted by ScoobyGDSTi
u can go to imprezawrxsti.com to see the sti titanium exhaust it is and axleback but looks awsome and sounds awsome too
07-07-2004 | 08:31 AM
#15
$1200 for an axleback is outrageous - its probably because they have to go through all the extra troubles to find one. I saw a GReddy catback Ti on an EVO8 once, great looking and quality. You can probably find one for $800-$900. Good luck.