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#1
05-12-2012, 04:09 PM
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Manifold back exhaust
Well my exhaust is completely shot the full way. So it's getting hacked off. Going to build a custom. I've gone through the videos on youtube. Got some ideas from them.
My idea is based off of this guy http://www.youtube.com/watch?v=UGDu4yh_QQw. His exhaust diagram: http://www.seccs.org/gallery/Car%20P...e_as_built.jpg What I would like to do is no precats, change the Glass pack to a SLP Loudmouth resonator. Not sure if you guys are familiar with them. They are making some really nasty sounding exhaust with the V8 guys... Wanted to give a shot with boxer motor.. He says just a generic bullet camaro muffler. I'm looking into the realm of Magnaflow. What series are you guys running? It's going to be a few weeks to build up the money... but will keep you guy posted. 
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#2
05-12-2012, 06:08 PM
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Re: Manifold back exhaust
2.5" is far too large for the pipes/tubes off of the factory header with a stock engine.
__________________
www.svxfiles.com The first SuperCharged SVX,  the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway  Fiberglass Hood thread My locker 4.44 Swap link
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#3
05-12-2012, 06:22 PM
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Re: Manifold back exhaust
What Tom says. 1-3/4 to 2" is fine for the pre-cat pipes on a stock SVX, merging into a 2.5" mid-pipe. The smaller tubing also makes routing easier, as the bends are tighter.
Here's what I did with mine. I haven't done a sound clip, but it sounds good. http://www.subaru-svx.net/forum/showthread.php?t=51867   I'll probably sell this one in a year or so and build a new version in stainless, with a resonator and flanges or v-bands all around. Need to get a MIG for myself first. I have a flux core welder, but it's a pile.
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Chris 92 Ebony Mica LS-L "A Rolling Restoration": 223,250 KM - Sleeping 2007 STi 6MT, Stance GR+ coilovers, PWR Rad, JDM hood badge, svxfiles 6000K HIDs, JDM Clear Corners, $15/15 min mod, $20/20 min mod, Energy Swaybar Bushings, Hella Supertones horns, Gold STi BBS rims, Group A lightweight crank pulley, A/C system removed, Custom header-back exhaust, Hybrid carbon/metal rear sway bar, restored headlights with CCFL halos 2008 Subaru Legacy Spec B - Diamond Grey Metallic - Sold 2020 Ram 1500 Longhorn - Red Pearl
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#5
05-13-2012, 02:04 PM
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Re: Manifold back exhaust
Quote:
Cut off the 1.61" diameter factory pipes/tubes and replace them with 2" mandral bends. In Allegheny CO. you are surely subject to PA emission laws. 
__________________
www.svxfiles.com The first SuperCharged SVX, the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway Fiberglass Hood thread My locker 4.44 Swap link
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#6
05-13-2012, 02:32 PM
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Re: Manifold back exhaust
1.Precats... Reason being money..
2. Yeah 2" seem to be the best bet. Running right into a Magnaflow 94007 cat. Seems to be the ticket. 3. lets just leave the rules out for now..
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#7
05-13-2012, 03:02 PM
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Re: Manifold back exhaust
I have a aftermarket system trying to get rid of, too loud for my taste. Its got the similar set up you want. I see that you are in whitehall/allentown. I am not too far away. PM for details
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94 Bordeaux Pearl SVX Lsi B&M cooler with Aux ATF filter. QC Kit Plus 06 Sti Gold Wheels. SOLD 92 Claret WRX 5 speed ECUTune 1AV1 Gold STI Wheels & more. SOLD 92 Teal SVX LSL lowered with Konig. SOLD 92 Black SVX LSL with B&M cooler & Aux filter. Small Car Shift Kit. Gone 94 Red SVX L FWDwith LSL Leather Interior. SOLD 92 Teal SVX LSL....with B&M cooler & Aux filter. Small Car Shift Kit. SOLD 95 Polo Green........With Trany Problem. GONE Almost complete Rear Wheel Bearings Job with Pictures in my locker  My Locker http://www.subaru-svx.net/photos/user.php?pearlm30
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#8
01-04-2013, 11:54 AM
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Re: Manifold back exhaust
Revival!
Did anyone make a diagram or photo of the stock system? Did anyone make a "The Definitive Exhaust Thread", TDET™?
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I got my girl, I got my glass, I got my car and I'm ready to f...
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#9
01-04-2013, 06:36 PM
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Re: Manifold back exhaust
Quote:
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. Subaru Ambassador 1996 Polo Green LSi #216..138,100 miles...SOLD JFICX8659TH100216.....Date of Manufacture: November 16, 1995..... Fuji Heavy Industries..Ōta North Plant....Ōta City,. Gunma Prefecture, Japan In-Service Date: January 2, 1997 "The Pristine Green Polo Machine” First Polo Green on the Network First Clear front turn signals, JDM Alcyone hood emblem, rear panel, and BOXER engine cover on the Network (US) (2000) First 5000K HID factory fog lights (2007) First SVX JDM BBS wheels on a USDM SVX (2013) HID lighting (5000K) for headlight and H3 fog lights, PIAA SuperExtreme 120W high beams, rebuilt EG33 longblock, Cometic head gaskets, Phase II flexplate, AMR aluminum radiator with custom silicone hoses, 160A high-output alternator in aluminum-ceramic coated case, new design alternator wiring upgrade v.4, rare factory headlight protectors, refinished JDM BBS mesh aluminum wheels and custom, polished billet aluminum new hex center caps, LED grille mod, R1 Concepts high-carbon cryo slotted rotors, Akebono ceramic pads, Goodridge S/S braided brake lines, Smallcar Stage 1 shift kit, ThermalTech aluminum/ceramic-coated valve covers, Energy Suspension urethane front & rear swaybar bushings, Bontrager22 rear swaybar with QS Components Chromoly Teflon/Kevlar endlinks, "$15.00/5 minute" suspension mod. Hella Supertone horns, Custom stainless steel exhaust system with 2" headpipes, Magnaflow cats, AeroTurbine AR25 resonator /AWD "Bullet" muffler. R.I.P. 2010 Subaru Outback Limited 2.5 CVT...338,000 miles. Totaled by a 1,300 lb. COW March 4, 2016  2014 Hyundai Avante Limited ...178,000 miles. Actually quieter and smoother than the Outback 2007 Mazda Miata MX-5 PRHT...102,000 miles. Plenty of parts, service and windshields. 4th Registered Network member —2/21/2001 My NEW locker..I...My Email..I..Wikipedia/SVX . . Last edited by svxcess; 01-04-2013 at 07:06 PM.
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#10
01-05-2013, 03:55 AM
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Re: Manifold back exhaust
In case it helps, here's the alternate plan I had to resort to for the rear here in Aus.
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#11
01-05-2013, 04:17 AM
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Re: Manifold back exhaust
What's the piping like?
Unless I modify the intake or engine, is there anything at all to gain by changing anything?
__________________
I got my girl, I got my glass, I got my car and I'm ready to f...
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#12
01-05-2013, 04:29 AM
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Re: Manifold back exhaust
Quote:
If you do it wrong you can create dead spots in the power, or make it sound like an unmuffled garbage truck. If you have bigger cams or a power adder (supercharger, turbocharger, NOX) an upgraded exhaust can help release some power. However the stock SVX exhaust is very efficient and well designed. Untill the factory resonator starts to BUZZ!
__________________
www.svxfiles.com The first SuperCharged SVX, the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway Fiberglass Hood thread My locker 4.44 Swap link
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#13
01-05-2013, 05:24 AM
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Re: Manifold back exhaust
Quote:
I am fairly happy with the resonator and muffler. It's very quiet, which increases comfort. When I open the throttle I, and those around me, hear the engine sound rather than hollow exhaust bellowing. This means a lot in terms of "prestige" around here. Every kid on the block has a modified exhaust but it's very little impressing and somewhat comical: You can hear it's just an expensive exhaust system on a 112hp 4 pot family affair. Possibly, I could enjoy a little more bass on low RPMidle and enhance the "racyness" of high RPM. I think the quality of the tone right now is quite good, so I'm not sure if it's worth the money? For sound tuning, I assume the important bits are resonator and muffler?
__________________
I got my girl, I got my glass, I got my car and I'm ready to f...
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#14
01-05-2013, 04:35 PM
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Re: Manifold back exhaust
Quote:
__________________
www.svxfiles.com The first SuperCharged SVX, the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway Fiberglass Hood thread My locker 4.44 Swap link
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