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12-06-2012, 09:14 AM | #1 |
Scooby Newbie
Member#: 278510
Join Date: Mar 2011
Vehicle:2011 WRX Hatchback Red |
Downpipe Selection
I'm looking to purchase a downpipe for my 2011 wrx hatch. I plan on getting the downpipe coated so I been taking that into consideration. What downpipe should I get? Also I have a Cobb catback
Cobb Or CNT catless Or Grimmspeed catless or catted (once they make it)
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12-06-2012, 09:18 AM | #2 |
Scooby Specialist
Member#: 266177
Join Date: Dec 2010
Chapter/Region:
MAIC
Location: Manassas Park, VA
Vehicle:2006 MX-5 RED |
First you should decide on catted or catless, then figure out which ones mate with your catback (or get an adapter).
The new Grimmspeed one looks really nice, I've been very happy with my Cobb one though. |
12-06-2012, 09:47 AM | #3 |
Scooby Newbie
Member#: 278510
Join Date: Mar 2011
Vehicle:2011 WRX Hatchback Red |
Is there a difference in performance from cobb bellmouth design to grimmspeed divorced design?
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12-06-2012, 11:00 AM | #4 |
Scooby Specialist
Member#: 13530
Join Date: Dec 2001
Chapter/Region:
NWIC
Location: Cascadia
Vehicle:EA63 , EA81T, EJ20G, EJ205 |
Dear lord, please do a search! This has been covered enough times to earn its own sticky! Unabomber authored it. It will have all the info you need.
If that isn't enough, go for a Cobb catted bellmouth dp, because the bell-part is investment cast = long life/durability. As for the coating, go with Swain Tech white lightening coating, or nothing at all. It is a genuine ceramic coating, not a tinted paint with some ceramic material mixed in. |
12-06-2012, 11:42 AM | #5 |
Medium Frank
Moderator Member#: 140114
Join Date: Feb 2007
Chapter/Region:
MAIC
Location: Common Sense, VA
Vehicle:2020 Subaru Outback |
Run no downpipe since you cannot utilize the search function.
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12-06-2012, 01:01 PM | #6 | |
Scooby Specialist
Member#: 284792
Join Date: Jun 2011
Chapter/Region:
RMIC
Location: Vanilla Valley, CO
Vehicle:2011 STI Blurple |
Quote:
IF you would have even done a little bit of searching, you would have found our stickies ^^ If you would have searched further, you would find many threads like yours... Like this one that was made just a few days ago n0000000b!!! http://forums.nasioc.com/forums/show....php?t=2438804 |
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12-06-2012, 01:12 PM | #7 | |
Scooby Specialist
Member#: 321321
Join Date: May 2012
Chapter/Region:
MWSOC
Location: STL
Vehicle:2010 Ford SVT Raptor Tuxedo Black |
Quote:
Found the estimate downpipes at $40 per ft. http://swaintech.com/race-coatings/a...s-price-sheet/ Now what would be cheaper, going used and getting their coating or buying brand new and their coating. "Used parts can be coated. Stripping paint, rust or a previous coating may require an additional charge." Once I decide to go stage 2 I may be giving them a call. |
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12-06-2012, 01:29 PM | #8 |
Scooby Specialist
Member#: 13530
Join Date: Dec 2001
Chapter/Region:
NWIC
Location: Cascadia
Vehicle:EA63 , EA81T, EJ20G, EJ205 |
Yes I have a little experience with it. I was clued into it about 10 years ago by Sport Compact Car magazine. Sadly, their plug was pulled several years ago. Very techy mag with lots of independant testing and imperical data and engineers moonlighting as writers. Www.Motoiq.com is the online reincarnation, and I. LOVE. THAT. SITE.
Mike Kojima used it all over the engine in his beast of a Z32TT. Anyway, I had my Cobb 625 uppipe coated for a little under $70 total. Only have 8k miles on it at this point and haven't taken any temp measurements yet, but I fully expect it to outlast the chassis. |
12-06-2012, 02:46 PM | #9 | |
Scooby Guru
Member#: 255776
Join Date: Aug 2010
Chapter/Region:
MWSOC
Location: Laramie, WY
Vehicle:2010 LR WRX MPS powered. |
Quote:
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12-06-2012, 03:59 PM | #10 | |
Scooby Specialist
Member#: 13530
Join Date: Dec 2001
Chapter/Region:
NWIC
Location: Cascadia
Vehicle:EA63 , EA81T, EJ20G, EJ205 |
Quote:
If cost were no object and all out performance was the OP's only goal, I would have suggested coating from the manifold to the exhaust tip... There are theoretical benefits, whether or not that would net you any measurabe gains, I can't say. Another benefit of coating the downpipe is to protect the passenger's side DOJ boot. I've seen a lot of Subarus of many generations with torn boots near the dp, even with the stock exhaust/dp. There is just a TON of heat in that area. Anything helps, coatings, wraps, heat shields, etc. some more effectivly than others. |
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12-06-2012, 04:11 PM | #11 |
Scooby Guru
Member#: 255776
Join Date: Aug 2010
Chapter/Region:
MWSOC
Location: Laramie, WY
Vehicle:2010 LR WRX MPS powered. |
I agree that if cost was no object, coat the entire exhaust, but I just can't see that helping anywhere NEAR as much as coating up to the turbo.
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12-06-2012, 04:32 PM | #12 |
Add Lightness
Moderator Member#: 13699
Join Date: Dec 2001
Chapter/Region:
NESIC
Location: Hopkinton, MA
Vehicle:2021 Building It Better |
moving to newbies section so the discussion can continue
(as 3 moderators perform actions on the thread.......) I win |
12-06-2012, 04:35 PM | #13 |
Scooby Guru
Member#: 105814
Join Date: Jan 2006
Chapter/Region:
NWIC
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12-06-2012, 04:40 PM | #14 |
Scooby Specialist
Member#: 13530
Join Date: Dec 2001
Chapter/Region:
NWIC
Location: Cascadia
Vehicle:EA63 , EA81T, EJ20G, EJ205 |
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12-06-2012, 04:45 PM | #15 |
Scooby Guru
Member#: 255776
Join Date: Aug 2010
Chapter/Region:
MWSOC
Location: Laramie, WY
Vehicle:2010 LR WRX MPS powered. |
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12-06-2012, 07:54 PM | #16 |
Scooby Specialist
Member#: 321321
Join Date: May 2012
Chapter/Region:
MWSOC
Location: STL
Vehicle:2010 Ford SVT Raptor Tuxedo Black |
Thanks drew and car freak for all the info. Have you guys ever run anything coated by grimmspeed? Wonder how the two would compare.
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12-06-2012, 09:00 PM | #17 |
Scooby Guru
Member#: 255776
Join Date: Aug 2010
Chapter/Region:
MWSOC
Location: Laramie, WY
Vehicle:2010 LR WRX MPS powered. |
Grimmspeed is just powder coating. No heat retention at all. Just for looks.
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12-06-2012, 11:46 PM | #18 | |
Scooby Specialist
Member#: 170906
Join Date: Feb 2008
Chapter/Region:
RMIC
Vehicle:2002 WRX psm |
Quote:
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12-06-2012, 11:55 PM | #19 | |
Scooby Specialist
Member#: 321321
Join Date: May 2012
Chapter/Region:
MWSOC
Location: STL
Vehicle:2010 Ford SVT Raptor Tuxedo Black |
Quote:
I would hope it's not just powder paint for looks Grimmspeed Ceramic Coated DP Ceramic Coating and Porting by GS |
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12-07-2012, 12:07 AM | #20 |
Scooby Guru
Member#: 255776
Join Date: Aug 2010
Chapter/Region:
MWSOC
Location: Laramie, WY
Vehicle:2010 LR WRX MPS powered. |
Essentially the same thing. They don't have a truly heat retentive coating, yeah, it may do a little just as painting an intercooler black may dissappaite(sp) heat better. In theory, it works, but in practice...well there won't be much difference at all. I will ONLY get my exhaust coated by Swain. If I had known that they also coat turbos when I had more time for my motor, I would've sent it to them. I also want to have them coat my intercooler.
Just to give you guys an idea of how much faith in their coating I have, I would GLADLY spend $800+ to have JUST my header, up pipe, and turbo coated by them. That stuff is pure magic. I ended up spending about $320 for coating my header and up pipe. That's the best $320 I've spent on my car. |
12-07-2012, 12:13 AM | #21 | |
Scooby Guru
Member#: 255776
Join Date: Aug 2010
Chapter/Region:
MWSOC
Location: Laramie, WY
Vehicle:2010 LR WRX MPS powered. |
Quote:
About halfway down the page right after the pic of a coated exhaust manifold and muffler. |
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12-07-2012, 12:15 AM | #22 | |
Scooby Specialist
Member#: 321321
Join Date: May 2012
Chapter/Region:
MWSOC
Location: STL
Vehicle:2010 Ford SVT Raptor Tuxedo Black |
Quote:
Pistons Cylinder Heads Valves & Valve Train Bottom End Intake Mani Brakes Tranny Gears & Shafts All Exhaust F' it Drew, sand down your ugly red paint and coat that ****er white! COAT EVERYTHING! |
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12-07-2012, 12:16 AM | #23 |
Scooby Guru
Member#: 255776
Join Date: Aug 2010
Chapter/Region:
MWSOC
Location: Laramie, WY
Vehicle:2010 LR WRX MPS powered. |
Oh, trust me. I want to. EVERY LAST PART.
**** you for saying my red paint is ugly |
12-07-2012, 12:18 AM | #24 |
Scooby Guru
Member#: 255776
Join Date: Aug 2010
Chapter/Region:
MWSOC
Location: Laramie, WY
Vehicle:2010 LR WRX MPS powered. |
Next time I build an engine, I'm coating everything. Oh, and you forgot bearings on your list.
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12-07-2012, 12:20 AM | #25 |
Scooby Specialist
Member#: 321321
Join Date: May 2012
Chapter/Region:
MWSOC
Location: STL
Vehicle:2010 Ford SVT Raptor Tuxedo Black |
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