Subaru Legacy Forums

Subaru Legacy Forums (http://legacygt.com/forums/index.php)
-   Fourth Generation Legacy (2005 - 2009) (http://legacygt.com/forums/forumdisplay.php?f=10)
-   -   2008 Spec B Exhaust questions. (http://legacygt.com/forums/showthread.php?t=174577)

wannalegacy 11-18-2011 05:28 PM

2008 Spec B Exhaust questions.
 
I've been out of the country a lot since getting my vehicle. Originally I was going to go with the Cobb stage 2 package which included the catted DP and exhaust system. Instead I purchased just the Accessport.

The Cobb exhaust system excluding the DP is not available new anymore since it is out of production. I'm looking for a good exhaust system and catted DP and an UP for my car that will give me decent performance gains without having too much drone while driving on the highway.

Are there any setups out there with good performance gains that pass emissions in VA, or would I have to reinstall my stock UP and DP? If so, would I get even better gains if I upgraded my headers?

Any thoughts and suggestions about this would be helpful. I've been through the site and listened to a lot of different exhaust setups on this forum and want to make sure I make the right purchases if I'm going to be investing money in my car.

robitrice 11-18-2011 06:03 PM

exhaust section has your answers if searched....ill give a brief explanation.

Cat back system vary....youtube is your friend for how it sounds.
Any DP with a proper tune will let you pass emmissions when plugged into the diagnostics as longs the codes are off and no CEL. If you have a strict visual garage you wont pass with any mods

Catback have minimal gains, stock is good for 300awhp. Headers not really worth it for a DD.

wannalegacy 11-18-2011 06:09 PM

Thanks for your advice on headers. I've spent hours searching the exhaust section and was looking for any additional input. Thanks for the explanation on passing emissions with a DP as well.

wannalegacy 11-18-2011 06:57 PM

Any additional suggestions would be greatly appreciated! I meant to put this thread in the exhaust section, but flubbed it.

farberio 11-19-2011 10:12 AM

The 08 does not have a cat in the up-pipe like the earlier LGT's, so, you can probably take that off your list and save some dough.

wannalegacy 11-19-2011 01:54 PM

Thanks for the info on the Up-Pipe. I knew it wasn't catted stock, just figure if I'm going to be replacing the DP and Exhaust I may want to take care of the rest while its in the shop.

HAMMER DOWN 11-20-2011 11:49 AM

This is mine on my 05, Just posted it yesterday around 6pm. K&N Typhoon intake, GMS Crossover & UP pipe, & Invidia DP & V2 cat back. Exhaust clip, inside on out. Sorry for the dirty LGT.

http://legacygt.com/forums/showthrea...25#post3639325

wannalegacy 11-21-2011 02:44 AM

Sounds great HD! I've seen a lot of negative things posted about changing out the stock intake on these cars. I'm assuming it's not a big deal as long as it is properly tuned for the new intake?

Max Capacity 11-21-2011 05:55 AM

IMO you don't gain much with a intake, get a good high flow air filter, I have a Perrin in the stock box. I'm catless up/dp in my 05, with stock exhaust, sounds pretty good, if you want more noise from the stock exhaust check out this.


http://legacygt.com/forums/showthrea...ogy-35764.html

Even with the exhaust the hp gain is about 10-12, is it worth the money.


You can do the washer thing now and see how you like the sound. Or do what I did, I removed the mufflers from my 09 Spec B and put the muffler deletes I had made for the wagon years ago, on it.

HAMMER DOWN 11-21-2011 08:30 AM

Quote:

Originally Posted by wannalegacy (Post 3640671)
Sounds great HD! I've seen a lot of negative things posted about changing out the stock intake on these cars. I'm assuming it's not a big deal as long as it is properly tuned for the new intake?

As long as you get tuned for your new air intake. You be ok.

Mike

HAMMER DOWN 11-21-2011 08:31 AM

^^^ Yep, intake was upgrade do to FMIC hot pipe interference with stock air box. Cat back was upgraded because the stock one had about one more NY winter before it hit the ground. Cracks by the mid-pipe flange, hangers ready to give up the fight to hang on & muffler flanges was reduce to less than 1/2 of it's original thickness. When I went stage 2. I plan on reusing the OEM cat-back, but after I saw it was on it's last leg. I decided upgrade it.

Mike

joedirtae09 11-21-2011 08:40 AM

Quote:

Originally Posted by wannalegacy (Post 3638512)
.

Are there any setups out there with good performance gains that pass emissions in VA, or would I have to reinstall my stock UP and DP? If so, would I get even better gains if I upgraded my headers?

Im in VA also... its hit or miss on passing VA emisions and inspections. It all depends on what shop you go to. I have the catted COBB down pipe and one mechanic said he would pass me because it "looked" like I had a cat. I dont know what that meant since, I really do have one.

I know some people that run a catless down pipe and have no problems. I wish I could run a catless down pipe but I dont want to risk it.

brawline 11-21-2011 12:03 PM

where in NOVA are you guys. You should come out to one of the meets in springfield at the hard times on monday nights. Im almost always there and my boy also come out most of the time with his legacy as well. Both of us have exhaust. if you want to hear in person.

wannalegacy 11-21-2011 05:06 PM

Quote:

Originally Posted by brawline (Post 3641055)
where in NOVA are you guys. You should come out to one of the meets in springfield at the hard times on monday nights. Im almost always there and my boy also come out most of the time with his legacy as well. Both of us have exhaust. if you want to hear in person.


I was actually going to come out there tonight, but decided not too with the rain. I've been there before. A few of my buddies bring their SRT8 jeeps down that way so I was hanging with them.

One thing I'd like to avoid is the snap pop after hard acceleration I've seen with some setups. I've been thinking of either the Catted Perrin or Cobb downpipe with either the SPT or Borla exhaust. I just see that a lot of people invest good money on their exhaust system only to be disappointed and I don't want to end up like that.

Thanks for all the information/support!

wannalegacy 11-21-2011 11:07 PM

Is there a way to move this to the exhaust section of the forum? If so, please let me know so I or someone else can do so.


All times are GMT -6. The time now is 01:37 PM.


LegacyGT.com