Last post on Jan 05, 2011 at 6:18 PM
You are in the Subaru Legacy & Outback
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Subaru Legacy, Subaru Outback, Sedan, Wagon
#239 of 258 Re: 2008 Legacy GT 2.5 MT exhaust and cold air intake [paisan]
Jul 12, 2008 (3:01 pm)
Do you have the high flow air intake and heat sheild as well as the SPT exhaust? The parts guy at the local dealer gave me the SPT brochure and that's where he quoted the 30 HP and 30 ft-lb increases for using all three products together.
#240 of 258 Re: 2008 Legacy GT 2.5 MT exhaust and cold air intake [woodyboy]
Jul 12, 2008 (5:30 pm)
The brochures do not include any dyno numbers. Since I have inside info I've seen the dyno charts and it's 12hp/15lbs on the SPT Catback. With the intake and heat shield it is 15/15, they really only give you more throttle response than anything else. If it were 30/30 at the wheels then it would be in the realm of STi territory at the crank.
#241 of 258 Re: I found my roof leak! [dave1620]
Jul 31, 2008 (5:19 pm)
Is it easy to fix?
#242 of 258 Re: 2008 Legacy GT 2.5 MT exhaust and cold air intake [paisan]
Jul 31, 2008 (5:33 pm)
I have installed the Cat Back and cold air intake on my 08 legacy GT. It seems like the torque curve has changed. It feels like less on the low end and more on the high end of RPM. Does it take awhile for the computer to learn the new system? It's been about a week. The cold air makes a whoosh sound as it trys to draw air in and the turbo spools up. I think I may take if off and go back to the stock intake if there is not much performance difference. Also it seems like my mileage has dropped off. Comments from anyone???
#243 of 258 Re: 2008 Legacy GT 2.5 MT exhaust and cold air intake [woodyboy]
Jul 31, 2008 (5:43 pm)
Yup when you do an intake it will make more torque/hp, marginally (I checked the brochure and that's max of 30/30 at the crank) but with an intake it will be at the cost of low end torque. This along with a higher flow of air (more air, means more fuel) will translate to lower milage.
I'm planning on doing a Cobb DP and the Access Port. Just found out that the "stage 2" map bumps you to 305hp/385lbs torque at the flywheel. Those are some gains that would be nice to see.
PS: I might be interested in your intake, although I am not a big fan of intakes.
Aug 14, 2008 (3:05 pm)
Guys, i would really like your input on this one! I have just recently received a 2007 legacy GT, what would be the best intake brand for this car? Also what would be the best combo performance wise for the best price?
#245 of 258 Re: 2008 Legacy GT 2.5 MT exhaust and cold air intake [paisan]
Aug 14, 2008 (8:20 pm)
Sorry for the delay. For some reason replies to me are not coming to my email. I just happened to stumble across yours. My direct email is woodward-slccomcast.net
I definetly notice the low end torque loss, but I feel it come on a little stronger as the turbo spools up. I think I am going to remove the intake and go back to stock. I do not track my car (yet anyway) so I would rather have the low end.
If you are interested in SPT intake and heat shield they have only been on the car about three weeks. I paid $270 for both. What would a fair price be if I pay the shipping?
Also I notice a stumble in acceleration as I climb through 4000 rpm. I have not asked the dealer about it. Any ideas?
#246 of 258 Re: subaru legacy 07 [legacygt07]
Aug 14, 2008 (8:24 pm)
I have the SPT exhaust and intake on my 08 GT. I think I am going to go back to the stock intake since I do not track my car. I don't know what the effect will be just running the exhaust. I will check it out and let you know in the next week or so.
#247 of 258 Re: subaru legacy 07 [woodyboy]
Aug 15, 2008 (6:05 pm)
I currently run the SPT cat-back exhaust only on my 05 LGT. I notice a slight stumble when the turbo hits around 3-4k rpms. I noticed this after I put in the SPT exhaust. Speaking to my friend at SPT, he said basically the freer flow has the turbo hit a little harder and that's what I am feeling on partial throttle.
I'll shoot you an e-mail or shoot me one to mikeiace.com on the intake, I'm not sure I want it either!
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#248 of 258 Re: 2008 GT Limited vs. 3.0?? [ylz]
Aug 31, 2008 (11:47 am)
For some reason the 3.0 requires premium fuel - kind of crazy now. So I went with the 2.5 which is fine around town and fine when you're cruising on the highway, but at times it feels sluggish especially when you're cruising at 70 and you have to slow down and then get back up to speed. The 2.5 also has to work pretty hard when going up hills.