"burglar can't heart click anything" (burglar)
11/01/2013 at 10:01 • Filed to: None
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"burglar can't heart click anything" (burglar)
11/01/2013 at 10:01 • Filed to: None | 1
| 1 |
The original muffler on the 911 is a heck of a piece. It looks like a hot dog and spans the width of the car:
This sausage supposedly weighs in at about 25lb. And it's at the very rear of the car, where it has the largest moment arm to act on it. Plus, my car was just too quiet.
This is a B&B exhaust for the 911. It's a beautiful piece, all stainless. Simple, compact, and light. It's also $800. Wha-wha-wha WHAT? Yes, it's pretty but there's no way I'm paying that much Porsche tax on a muffler and a little bit of pipe.
So I built this in one evening. Surprisingly, the 30 year old factory exhaust dropped right off. I already had the bolts off as part of the !!!error: Indecipherable SUB-paragraph formatting!!! And from there it was just two hose clamp type straps that hold it up. Also note I built mine "upside down" from the B&B, with the bottom as the inlet instead of the top. That allowed me to avoid needing any compound bends - just strategic cuts of the 1 U-bend.
I have no idea how to weld, as I have never done it before. I borrowed a 110v welder from a friend and read up on the internet on how to do it, which made me an instant expert. I managed to set myself on fire only once, I think that's pretty good. The end result is far from pretty (please don't look closely at the welds) but the whole thing has held together so far.
Here's my part list, I sourced everything from !!!error: Indecipherable SUB-paragraph formatting!!! :
SUM-622003 2.5" U-bend pipe - $21.95
WLK-17676 Walker 1 in 1 out same side - $69.95
WLK-31900 Walker 2.5" 3-bolt flange - $3.95
The OEM clamps weren't long enough to go around the new muffler, so I stopped at Lowe's and picked up some hose clamps for another $10 or so. Total cost ~$105 plus a sixer of beer as welder rental fee. If you know how to weld stainless, you can get stainless versions of everything for just under $200.
Installed it looks pretty good. The muffler itself is barely visible below the bumper. I elected not to use a tip, I think the raw 2.5" pipe firing right out the side looks simple, purposeful, and classy, and suits the car well.
Result? Well, it sounds pretty darned good. Idle has a bit more bass rumble, but it's not much louder there. At cruise, especially on the freeway, you'd be hard pressed to tell it wasn't stock. Under light / mid load it's definitely wakes up to "sporty," but not objectionable. At WOT above 4000rpm it just flat out rips. Perhaps a little on the loud side there, but it sounds so fantastic (to my ears anyways) that it's addictive.
Supposedly the OEM piece is pretty well designed, and you don't get much power from an exhaust on a 911. My butt dyno can't feel any loss or gain. However, dropping an estimated 10lb off the very tail of the car can't hurt. Plus it sounds neat.
Here's a nice little video that gives a pretty faithful rendition of the tone:
Casper
> burglar can't heart click anything
11/01/2013 at 10:28 |
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That video made me miss autocross so much. I can't wait to have my car done for next year... even if it's just my restomod running way out of class or NFP.
The car sounds good and looks like a lot of fun.