Kooks Catted H-Pipe vs Shop Fabbed Catted H-Pipe

unlicensed to drive · July 14th, 2009, 01:04 PM

A member on MM gave me a suggestion that instead of buying the 570.00 Kooks Catted H-Pipe along with Kooks LT's to get a shop in Houston to fab an Catted H-Pipe up(that fits the Kooks LT's obviously) to save a good bit of money, so I decided to get some opinions from you all. Anyone have any experiences with shop fabbed midpipes? Would you reccomend getting one over an off the shelf midpipe?

Grabber523 · July 14th, 2009, 01:07 PM

Do it. My whole cat-back exhaust on my F-150 was shop fabbed, and even with the cost of mufflers and tips, it was under $600. It will be no different, probably just not as "pretty". You could probably even have them chop in the stock crossover and cats to fit behind the headers.

unlicensed to drive · July 14th, 2009, 01:11 PM

Hmm I'll have to discuss it with my dad. It would be nice to get some high flow cats on the car though, the stockers are very restrictive, as seen in this picture below.

Grabber523 · July 14th, 2009, 01:25 PM

How much HP do high flow cats give you?

unlicensed to drive · July 14th, 2009, 01:57 PM

I don't know, but I bet almost all of what you gain from a high flow catted midpipe is attributed to the cats, so that means 5-10 HP I guess. Here's a picture of the high flow cats on an S197 American Racing Shorty H-Pipe(for LT's):

beefmobile · July 14th, 2009, 02:23 PM

i cant see the pics!!!

at work..

unlicensed to drive · July 14th, 2009, 02:35 PM

I guess you'll have to see them later then. The first pic is of a stock cat, which has hundreds of holes in it's carbon trap for the air to flow through that are barely bigger than the size of a hole that the tip of a pen would poke, you can barely see ANY holes whatsoever in the carbon trap.

The second pic shows a American Racing cat. The carbon trap inside of it looks almost exactly like they carbon trap Ford put on early 2005 mustangs, so it flows a lot better than stock(way bigger holes in the carbon trap).

ixmotoxi · July 14th, 2009, 02:49 PM

and these are what, ~$150?

unlicensed to drive · July 14th, 2009, 02:55 PM

Do you mean the aftermarket cats or the fabbed h?

07stanggt · July 14th, 2009, 07:46 PM

Lifetime warranty. Enough said. I havent found a shop with a lifetime warranty on anything they do yet.

Kuro · July 14th, 2009, 07:51 PM

No cats ftw.

unlicensed to drive · July 14th, 2009, 07:51 PM

Shoot I didn't think about that. Plus a guy on the mustang source mentioned that for some brands of headers, the midpipe requires certain connections to the header that are not as readily available to shops or the public.

Getting the Kooks H-Pipe sounds like the best bet as of now, thanks for the opinions guys.

Kuro, my dad doesn't want the car obnoxiously loud so he wants to keep cats.

ixmotoxi · July 14th, 2009, 08:06 PM

mf, the cats

unlicensed to drive · July 14th, 2009, 08:17 PM

Those Kooks cats are between 100 and 150 bucks.

UrbanRedneck · July 14th, 2009, 11:38 PM

Mf there is no carbon trap in a cat... That's a honeycomb mesh of ceramic substrate plated with catalyst metal (usually platinum, paladium, and rhodium or iridium).

I'd buy a kooks one. It's hard to find a good exhaust shop, and usually they can't mandrel bend anything and rarely use stainless because it is expensive and hard to weld. Not many shops have the tools to cut the proper hole for the cross pipe either, and usually just hog out a hole with a torch that will be rough and possibly create turbulance. Plus, the koosk pipe bolts on (won't have to drive with open headers nad your overaxxle pipes dangling to a shop) and has a warranty.

unlicensed to drive · July 14th, 2009, 11:48 PM

Originally Posted by UrbanRedneck

Mf there is no carbon trap in a cat... That's a honeycomb mesh of ceramic substrate plated with catalyst metal (usually platinum, paladium, and rhodium or iridium).

I'd buy a kooks one. It's hard to find a good exhaust shop, and usually they can't mandrel bend anything and rarely use stainless because it is expensive and hard to weld. Not many shops have the tools to cut the proper hole for the cross pipe either, and usually just hog out a hole with a torch that will be rough and possibly create turbulance. Plus, the koosk pipe bolts on (won't have to drive with open headers nad your overaxxle pipes dangling to a shop) and has a warranty.

I know there isn't, but I was calling it a carbon trap because that thing does serve as a trap for some of the emissions that are flowing through the exhaust pipes.

Thanks for the info on a fabbed H.

reps to all who helped.

brianm · July 14th, 2009, 11:57 PM

I am going to order some long tubes soon and was thinking the same thing ,but for a few hundred dollars why bother. Plus most shops don't use stainless pipe.

unlicensed to drive · July 15th, 2009, 12:03 AM

Plus you don't have to worry about leaks with a high quality SS midpipe like the Kooks one.

Fluffy The Rhino · July 15th, 2009, 12:20 AM

Originally Posted by mustangfan123

Plus you don't have to worry about leaks with a high quality SS midpipe like the Kooks one.

Yes you do : )

unlicensed to drive · July 15th, 2009, 12:22 AM

: O Well apparently not as much as a fabbed one.

July 14th, 2009, 01:04 PM	#1
unlicensed to drive MM Fanatic Blank Join Date: Feb 2009 Posts: 4,733 iTrader: 1 reviews	Kooks Catted H-Pipe vs Shop Fabbed Catted H-Pipe A member on MM gave me a suggestion that instead of buying the 570.00 Kooks Catted H-Pipe along with Kooks LT's to get a shop in Houston to fab an Catted H-Pipe up(that fits the Kooks LT's obviously) to save a good bit of money, so I decided to get some opinions from you all. Anyone have any experiences with shop fabbed midpipes? Would you reccomend getting one over an off the shelf midpipe?

July 14th, 2009, 01:07 PM	#2
Grabber523 Your Mom's Favorite 2007 Mustang GT Eats Chevys, Shits Imports... Join Date: Mar 2007 Location: Scott AFB, Illinois Posts: 2,490 iTrader: 0 reviews	Do it. My whole cat-back exhaust on my F-150 was shop fabbed, and even with the cost of mufflers and tips, it was under $600. It will be no different, probably just not as "pretty". You could probably even have them chop in the stock crossover and cats to fit behind the headers. __________________ http://www.moddedmustangs.com/forums...p-vote-me.html TEAM RICER GT CREW MEMBER (11 SECOND RIDE WITH A 12 SECOND DRIVER) MEMBERS AGAINST MEMBERS AGAINST STUFF CREW FOUNDER TRUNK MONKEY CREW FOUNDER

July 14th, 2009, 01:25 PM	#4
Grabber523 Your Mom's Favorite 2007 Mustang GT Eats Chevys, Shits Imports... Join Date: Mar 2007 Location: Scott AFB, Illinois Posts: 2,490 iTrader: 0 reviews	How much HP do high flow cats give you? __________________ http://www.moddedmustangs.com/forums...p-vote-me.html TEAM RICER GT CREW MEMBER (11 SECOND RIDE WITH A 12 SECOND DRIVER) MEMBERS AGAINST MEMBERS AGAINST STUFF CREW FOUNDER TRUNK MONKEY CREW FOUNDER

July 14th, 2009, 02:49 PM	#8
ixmotoxi Enthusiast 08 Alloy GT Join Date: Jul 2008 Location: So Cal Posts: 676 iTrader: 0 reviews	and these are what, ~$150? __________________ vroom.

July 14th, 2009, 07:51 PM	#11
Kuro Banned 2007 Mustang Join Date: Nov 2006 Location: Texas Posts: 895 iTrader: 0 reviews	No cats ftw. __________________ [url]www.ctxracing.com[/url] [url]www.tandlmedia.com[/url] [SIGPIC][/SIGPIC]

July 14th, 2009, 01:11 PM	#3
unlicensed to drive MM Fanatic Blank Join Date: Feb 2009 Posts: 4,733 iTrader: 1 reviews	Hmm I'll have to discuss it with my dad. It would be nice to get some high flow cats on the car though, the stockers are very restrictive, as seen in this picture below.

July 14th, 2009, 01:57 PM	#5
unlicensed to drive MM Fanatic Blank Join Date: Feb 2009 Posts: 4,733 iTrader: 1 reviews	I don't know, but I bet almost all of what you gain from a high flow catted midpipe is attributed to the cats, so that means 5-10 HP I guess. Here's a picture of the high flow cats on an S197 American Racing Shorty H-Pipe(for LT's):

July 14th, 2009, 02:35 PM	#7
unlicensed to drive MM Fanatic Blank Join Date: Feb 2009 Posts: 4,733 iTrader: 1 reviews	I guess you'll have to see them later then. The first pic is of a stock cat, which has hundreds of holes in it's carbon trap for the air to flow through that are barely bigger than the size of a hole that the tip of a pen would poke, you can barely see ANY holes whatsoever in the carbon trap. The second pic shows a American Racing cat. The carbon trap inside of it looks almost exactly like they carbon trap Ford put on early 2005 mustangs, so it flows a lot better than stock(way bigger holes in the carbon trap).

July 14th, 2009, 02:55 PM	#9
unlicensed to drive MM Fanatic Blank Join Date: Feb 2009 Posts: 4,733 iTrader: 1 reviews	Do you mean the aftermarket cats or the fabbed h?

July 14th, 2009, 07:46 PM	#10
07stanggt I Post Entirely Way Too Much 2007 GT Join Date: Mar 2007 Location: Ellicott City, MD Posts: 11,950 iTrader: 1 reviews	Lifetime warranty. Enough said. I havent found a shop with a lifetime warranty on anything they do yet.

July 14th, 2009, 08:06 PM	#13
ixmotoxi Enthusiast 08 Alloy GT Join Date: Jul 2008 Location: So Cal Posts: 676 iTrader: 0 reviews	mf, the cats __________________ vroom.

July 14th, 2009, 08:17 PM	#14
unlicensed to drive MM Fanatic Blank Join Date: Feb 2009 Posts: 4,733 iTrader: 1 reviews	Those Kooks cats are between 100 and 150 bucks.

July 14th, 2009, 11:38 PM	#15
UrbanRedneck Hardcore Enthusiast 2008 Mustang GT 13.124@105.52 Join Date: May 2008 Location: Chicago Posts: 2,138 iTrader: 1 reviews	Mf there is no carbon trap in a cat... That's a honeycomb mesh of ceramic substrate plated with catalyst metal (usually platinum, paladium, and rhodium or iridium). I'd buy a kooks one. It's hard to find a good exhaust shop, and usually they can't mandrel bend anything and rarely use stainless because it is expensive and hard to weld. Not many shops have the tools to cut the proper hole for the cross pipe either, and usually just hog out a hole with a torch that will be rough and possibly create turbulance. Plus, the koosk pipe bolts on (won't have to drive with open headers nad your overaxxle pipes dangling to a shop) and has a warranty. __________________ Hurst Crew Member #20 2008 GT - ARH, C&L, Hurst, BORLA, BMR, Bilstein, FRPP, Axle Exchange. Awesome.

July 14th, 2009, 11:57 PM	#17
brianm Hardcore Enthusiast 2011 ram 1500 hemi Join Date: Sep 2007 Location: sylvan lake, alberta Posts: 1,336 iTrader: 0 reviews	I am going to order some long tubes soon and was thinking the same thing ,but for a few hundred dollars why bother. Plus most shops don't use stainless pipe. __________________ vmp500 hp. jba lts. powerhouse d/s Sold

July 15th, 2009, 12:03 AM	#18
unlicensed to drive MM Fanatic Blank Join Date: Feb 2009 Posts: 4,733 iTrader: 1 reviews	Plus you don't have to worry about leaks with a high quality SS midpipe like the Kooks one.

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July 15th, 2009, 12:22 AM	#20
unlicensed to drive MM Fanatic Blank Join Date: Feb 2009 Posts: 4,733 iTrader: 1 reviews	: O Well apparently not as much as a fabbed one.

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