SI muffler installed on EX coupe

Jay Kincannon · 03-31-2007, 04:32 PM

Just finished replacing my oem muffler with the oem SI muffler. I had read many different ways to do make this work such as add washers, remove the springs and buy shorter bolts, and others. So while the right rear wheel was off, my mechanic buddy and I were also installing my new rotors and pads, she (yes, I said she) said there must be a better way to do this. So we started by looking at the SI gasket and I told her about how the bolts don't exactly line up with SI muffler flange and the EX mid-pipe flange. Guess what guys, it took her less than a couple of of seconds to solve the problem and create a perfect fit. Being a pack rat like most women, She dug around in her garage and handed me piece of aluminum pipe that was almost a perfect to make a spacer to go over the mid-pipe and fit snuggly inside the SI gasket. So we modified the piece of pipe into a spacer sleeve, slide it over the mid-pipe, placed the SI gasket over the sleeve, installed the SI muffler, aligned the bolts with the springs and tightened them alternating them to a snug fit. She said, by the way we all call her "Maguyfer" because she can fix anything,if anyone would like a spacer she would make them for $10 as long as she can find the right pipe to make them from. Sorry, I don't have a camera, so no pictures.

SiLvErLIgHT06 · 03-31-2007, 04:38 PM

**Yodums** · 03-31-2007, 04:56 PM

Quote:

Originally Posted by SiLvErLIgHT06

Jay Kincannon · 03-31-2007, 05:01 PM

I knew this is the response i would get. If I do some drawings, would that help. I tried to word it to the best of my ability.

Coop · 03-31-2007, 05:05 PM

Quote:

Originally Posted by SiLvErLIgHT06

undrgnd · 03-31-2007, 07:35 PM

06 Civic Ex · 03-31-2007, 09:50 PM

Quote:

Originally Posted by undrgnd

***Zeuceone*** · 03-31-2007, 09:55 PM

no pics.?

undrgnd · 04-01-2007, 12:45 PM

Quote:

Originally Posted by Jay Kincannon

I knew this is the response i would get. If I do some drawings, would that help. I tried to word it to the best of my ability.

"a drawing"? Are you joking? It's not your wording, and we all know what the exhaust does and what the OEM unit looks like. The reason people want pictures is so they can gage for themselves the result of your efforts. If it's a 'like-for-like' replacement, then maybe no big deal. But when you fit something meant for the Si on an EX, especially when so few after-market exhausts are available for the '06/7, people want to see how it came out. I'm still curious about how the tubing fits around the body/drivetrain, and how the gasket and bolts end up after connecting two dissimilar size sections.

Jay Kincannon · 04-01-2007, 01:12 PM

Don't understand the body/drivetrain refferance? I will have an install drawing posted soon.

Jay Kincannon · 04-02-2007, 10:04 PM

As you can see by the drawing, the sleeve or spacer (labeled as new part) slips over the existing EX mid-pipe in front of the flange. The new sleeve fits over that piece of pipe. After the sleeve is in place, slide the SI gasket over the spacer. Once this is done, the SI axleback muffler will center on the EX mid-pipe. As you can see in the drawing, the 2 flanges do not line up exactly. So install both the springs and slowly tighten each spring alternating every few turns until the muffler is secure to the mid-pipe. By doing this, it will center everything and center your exhaust tips in the opening of the bumper. Sorry I could not provide pictures hopefully this will show everyone what I have done. If you have any questions, please ask.

Coop · 04-02-2007, 10:44 PM

nice drawing, but we want pics to see what it looks like. not of everything apart, but pics of what it looks like now.

Xtreme Thunder · 04-03-2007, 09:46 AM

Quote:

Originally Posted by Jay Kincannon

As you can see by the drawing, the sleeve or spacer (labeled as new part) slips over the existing EX mid-pipe in front of the flange. The new sleeve fits over that piece of pipe. After the sleeve is in place, slide the SI gasket over the spacer. Once this is done, the SI axleback muffler will center on the EX mid-pipe. As you can see in the drawing, the 2 flanges do not line up exactly. So install both the springs and slowly tighten each spring alternating every few turns until the muffler is secure to the mid-pipe. By doing this, it will center everything and center your exhaust tips in the opening of the bumper. Sorry I could not provide pictures hopefully this will show everyone what I have done. If you have any questions, please ask.

Nice drawing! I take it you may be a drafter? Have AutoCAD?

Not really much to see with a picture, except an EX with an Si pipe!

Great work!

Jay Kincannon · 04-03-2007, 10:22 AM

If I could take a picture off the completed installation, all you would see is that it looks OEM and that is the point. This way you have not altered the factory design. If you just bolt it directly without the springs it makes the connection rigid and may cause unwanted wear to the exhaust mounts. If you use the OEM bolt with the spring with or without extra washers with just the OEM SI gasket the connection will slide around and may cause an exhaust leak. The drawing I provided shows a very simply way to fix a know problem IMO.

**Yodums** · 04-03-2007, 10:29 AM

Did you actually draw that? You want to come to my classes and take notes for me? Damn, I would kill for that kind of legible writing!

Jay Kincannon · 04-03-2007, 10:31 AM

No autocad, just did it by hand, with the help of graft paper. I sometimes forget I find things like this easy to see. I am really sorry I do not own a camera so I could show you guys what I see (inside my head).

**Yodums** · 04-03-2007, 10:36 AM

Damn dude, I need your hand to write like that. Trade ya!

CivSi06 · 04-03-2007, 10:46 AM

Just buy an SI.

Jay Kincannon · 04-03-2007, 10:53 AM

I'm 59 years old and I'm tired of shifting. I wish I could have an SI with AT. Give me a break.

simplicated1979 · 04-03-2007, 12:05 PM

where are the pics sir... lol j/k good job

03-31-2007, 04:32 PM	#1 (permalink)
Jay Kincannon Senior Member Join Date: Mar 2007 Posts: 936 iTrader: 2 / 100%	SI muffler installed on EX coupe Just finished replacing my oem muffler with the oem SI muffler. I had read many different ways to do make this work such as add washers, remove the springs and buy shorter bolts, and others. So while the right rear wheel was off, my mechanic buddy and I were also installing my new rotors and pads, she (yes, I said she) said there must be a better way to do this. So we started by looking at the SI gasket and I told her about how the bolts don't exactly line up with SI muffler flange and the EX mid-pipe flange. Guess what guys, it took her less than a couple of of seconds to solve the problem and create a perfect fit. Being a pack rat like most women, She dug around in her garage and handed me piece of aluminum pipe that was almost a perfect to make a spacer to go over the mid-pipe and fit snuggly inside the SI gasket. So we modified the piece of pipe into a spacer sleeve, slide it over the mid-pipe, placed the SI gasket over the sleeve, installed the SI muffler, aligned the bolts with the springs and tightened them alternating them to a snug fit. She said, by the way we all call her "Maguyfer" because she can fix anything,if anyone would like a spacer she would make them for $10 as long as she can find the right pipe to make them from. Sorry, I don't have a camera, so no pictures.

04-03-2007, 10:22 AM	#14 (permalink)
Jay Kincannon Senior Member Join Date: Mar 2007 Posts: 936 iTrader: 2 / 100%	If I could take a picture off the completed installation, all you would see is that it looks OEM and that is the point. This way you have not altered the factory design. If you just bolt it directly without the springs it makes the connection rigid and may cause unwanted wear to the exhaust mounts. If you use the OEM bolt with the spring with or without extra washers with just the OEM SI gasket the connection will slide around and may cause an exhaust leak. The drawing I provided shows a very simply way to fix a know problem IMO. Last edited by Jay Kincannon; 04-03-2007 at 10:33 AM.

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03-31-2007, 04:38 PM	#2 (permalink)
SiLvErLIgHT06 Senior Member Join Date: Jun 2006 Posts: 391 iTrader: 0 / 0%

03-31-2007, 05:01 PM	#4 (permalink)
Jay Kincannon Senior Member Join Date: Mar 2007 Posts: 936 iTrader: 2 / 100%	I knew this is the response i would get. If I do some drawings, would that help. I tried to word it to the best of my ability.

03-31-2007, 07:35 PM	#6 (permalink)
undrgnd Senior Member Join Date: Feb 2007 Location: USA Posts: 167 iTrader: 0 / 0%

03-31-2007, 09:55 PM	#8 (permalink)
*Zeuceone* Kill Your Self Krew Join Date: Nov 2006 Location: Killa Cali. Posts: 48,613 iTrader: 23 / 100%	no pics.?

04-01-2007, 01:12 PM	#10 (permalink)
Jay Kincannon Senior Member Join Date: Mar 2007 Posts: 936 iTrader: 2 / 100%	Don't understand the body/drivetrain refferance? I will have an install drawing posted soon.

04-02-2007, 10:04 PM	#11 (permalink)
Jay Kincannon Senior Member Join Date: Mar 2007 Posts: 936 iTrader: 2 / 100%	As you can see by the drawing, the sleeve or spacer (labeled as new part) slips over the existing EX mid-pipe in front of the flange. The new sleeve fits over that piece of pipe. After the sleeve is in place, slide the SI gasket over the spacer. Once this is done, the SI axleback muffler will center on the EX mid-pipe. As you can see in the drawing, the 2 flanges do not line up exactly. So install both the springs and slowly tighten each spring alternating every few turns until the muffler is secure to the mid-pipe. By doing this, it will center everything and center your exhaust tips in the opening of the bumper. Sorry I could not provide pictures hopefully this will show everyone what I have done. If you have any questions, please ask.

04-02-2007, 10:44 PM	#12 (permalink)
Coop Senior Member Join Date: Nov 2006 Location: TX Posts: 1,978 Coop iTrader: 7 / 100%	nice drawing, but we want pics to see what it looks like. not of everything apart, but pics of what it looks like now.

04-03-2007, 10:29 AM	#15 (permalink)
Yodums Scrodums Join Date: May 2006 Location: Ottawa, Canada Posts: 8,240 Hiro Nakamura iTrader: 9 / 100%	Did you actually draw that? You want to come to my classes and take notes for me? Damn, I would kill for that kind of legible writing!

04-03-2007, 10:31 AM	#16 (permalink)
Jay Kincannon Senior Member Join Date: Mar 2007 Posts: 936 iTrader: 2 / 100%	No autocad, just did it by hand, with the help of graft paper. I sometimes forget I find things like this easy to see. I am really sorry I do not own a camera so I could show you guys what I see (inside my head).

04-03-2007, 10:36 AM	#17 (permalink)
Yodums Scrodums Join Date: May 2006 Location: Ottawa, Canada Posts: 8,240 Hiro Nakamura iTrader: 9 / 100%	Damn dude, I need your hand to write like that. Trade ya!

04-03-2007, 10:46 AM	#18 (permalink)
CivSi06 Junior Member Join Date: Mar 2007 Location: Chapel Hill, NC Posts: 15 Mark iTrader: 0 / 0%	Just buy an SI.

04-03-2007, 10:53 AM	#19 (permalink)
Jay Kincannon Senior Member Join Date: Mar 2007 Posts: 936 iTrader: 2 / 100%	I'm 59 years old and I'm tired of shifting. I wish I could have an SI with AT. Give me a break.

04-03-2007, 12:05 PM	#20 (permalink)
simplicated1979 Senior Member Join Date: May 2006 Location: BK, New York Posts: 1,291 shaba iTrader: 0 / 0%	where are the pics sir... lol j/k good job