Dynomax muffler choices

[drew@scirocco.cs.uoguelph.ca (Drew MacPherson)]

Thanks to all (especially Cathy for her excellent field work) for their
input on mufflers.  In the end price and availability rule the day.  I
picked up a Magnaflow aluminized 5X9 2.5 in dual 2.5 out at a local shop
this morning.  I'm impressed with the outward appearance of this welded
muffler - if the insides are half as good as the outside work I see it
lasting a long time, even if it isn't stainless.  The dual out won't
likely flow any better than the single, but I allowed myself to give in to
vanity - I just like the look of the dual outlet... :)

Being a diesel the inside of the exhaust is not as prone to corrosion as 
on a gasser (soot makes a wonderful rust inhibitor) and shy of the steel 
wool packing blowing out, I don't know what could go wrong with this unit 
- there are no baffles to break, as it's straight through.  I'm anxious to 
get it all together so I can hear how it sounds.

Drew

>   ----- Original Message ----- 
>   From: Drew MacPherson 
>   To: scirocco-l@scirocco.org 
>   Sent: Tuesday, April 29, 2003 4:46 AM
>   Subject: Dynomax muffler choices
> 
>   It looks like the short list is out (and it's pretty short)
> 
>   I'm looking at one of two dynomax mufflers:  
> 
>   1) the ultraflow welded/race model 17230, which is a 6" round unit with
>   2.5 in/out, and a 21" overall length, which makes it a pretty good fit
>   behind the TT centre pipe, with only a top or turndown required.  
> 
>   2) the dynomax race bullet, which is a "racing only" muffler (hey, I race
>   my Scirocco in the laneway everynight!)  The 24215 is a 4" round bullet
>   with 2.5 in/out and a 16.5" overall length, meaning it'll need a longer
>   turndown to get the exhaust past the rear valence.
> 
>   Although the price of the bullet is much more attractive (still waiting
>   for final quotes from local supplier) it looks like it probably will not
>   do too much in the way of quieting, compared to the 6" round unit.  Does
>   anyone have experience with either of these models?  The straight-through 
>   design is attractive, and I'm pretty confident that the 6" unit would give 
>   me the level of quieting that I desire (ok, it's a daily driver and I'm 
>   getting too old)  At the same time, I'm not sure how much good the race 
>   bullet will be - I don't need a lot of quieting, just enough to take that 
>   really rough edge off.
> 
>   Any personal opionion concerning the overall quality (or lack therof) of 
>   dynomax products would also be appreciated. 
> 
>   Drew
> 
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|  84 Wolfsburg Edition TurboDiesel Scirocco  |
|    http://scirocco.cs.uoguelph.ca/gtd       |
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