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Guest Message by DevFuse

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performance upgrades?

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2 replies to this topic

#1 Rob98obsport


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Posted 14 January 2004 - 08:28 PM

I just bought a 98 outback sport and am currently looking for basic bolt on parts to up the performance of the cars handling and power. And I was wondering if anyone could point me to a place where I could find these parts...... I live in an area with plenty of curves and am looking for upgrades for street use (not dirt roads).......Also will most impreza parts fit this car, I can find things like shocks and springs for imprezas but it does not specify if it is the outback, sedan or 2.5 rs.....please help


#2 ScoobySchmitty


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Posted 14 January 2004 - 08:45 PM

Welcome to the board!
Depends on what engine you have. If you have the 2.5L, you might be able to look up performance parts designed for the 2.5RS, as far as engine mods go (lightweight flywheel, performance clutch, lightweight underdrive pulley, etc.). Lesse, I don't know of any specific cold air intakes designed for the 2.5 As far as parts swapping, your best bet is to go for legacy parts to swap, 95 and younger. There's little from the impreza that will swap into the Outback. Here's a couple of links to get you started:

www.1stsubaruparts.com - OEM parts at autostore prices
www.cosmoracing.com - basic light tune parts, cold air intake, underdrive pulley
www.prodrive.com - wheels, brakes, short shifters, etc.
www.spomotorsports.com - JACKPOT! Just look under Legacy :D

Hope these help out. I'm sure other board members know of more performance sites and maybe even some local stores for u. Good Luck!

#3 1 Lucky Texan

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Posted 15 January 2004 - 12:32 AM

I am slowly shopping for an OBS for myself (the wife's car is an OBW H6). I have read a lot and asked a lot of questions. The main conlusions seem to be; there is d@mn little you cna do, short of an engine swap, to increase power. Ligthened pulleys and, if manual tranny, lightened flywheel will 'free up' some HP. Cold air intakes may give a little power but could also damage the MAF sensor. Exhaust work may give CELs and can actually hurt low end torque (though a couple xtra ponies may show up in the top end). All total, probably hard to get an xtra 10-15%% more power from intake and exhaust mods - with likely CEL problems. And accelration gains are approx. the square root of power gains. 16% more power=4% more accel.

There is some goodnews for handling, start with wheels/tires and a rear anti-sway bay. Adjustable or 18mm/20mm. There is mixed info. about struts. best safest but moderately diffcult/expensive would be to put Koni yellows in the stock struts. KYB AGX adjustables for the front are probably the same as other Imprezas - but not shown in KYB catalog for the rear. Some folks have put AGXs on the OBS rear and seem happy. Other sites are vague about it. GR2s may be a good way to go. There are a lot of choices for springs, I'd lean toward whiteline,eibach or H&R I think. Whiteline might be a good source for the sway bar too. I'd concentrate on the suspension and tires first and foremost. For more info try www.subaruoutback.org , www.obsportal.com , www.nasioc.com , www.spdusa.com , www.i-club.com and searching this forum.

I'm envious. have fun with your new car!

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