[W126 Coupe] Free at last

[Jonathan Hodgman]

Glad to hear she's working well!  However, as of late I've changed my
philosophy in regards to cats, that being it's worth it IMHO to install two
high flow cats on these cars, reduction of peak HP is minor (3-5) however
the reduction in emissions is not.

All of my cars (my AMG included) are undergoing re-working of the exhaust to
include to high flow cats..  I've also begun to encourage any of my cat-less
customers to do the same.

These cars are far from efficient to begin with thus I think it prudent to
lessen the overall impact as best we can.

Jonathan


On 5/19/07, richard jaffe <rsjaffe1 at msn.com> wrote:

>

>  Guys,

>

> Finally got around to having the cats cut off and replaced with two

> sections of straight 2.25 in. aluminized pipe. So now I only have the

> two OEM resonators under the rear seat pans doing the muffling since I did

> not replace the old rusted out rear OEM muffler but ran split duals out the

> back instead. BIG DIFFERENCE! Acceleration definitely improved - now get

> that pushed back in the seat feeling as opposed to a leisurely gathering of

> speed.

> Good sound too. Nice rumbly V8 noise - very muscle carlike - but not too

> loud.

>

> Internet research led to a company in California called Spin Tech making

> mufflers for race car applications but now making street applications as

> well. They make a split case reverse flow muffler (inlet and outlet on same

> end) which is the same design as the OEM resonators. (C5 Corvette uses this

> design as well). The dimensions are 4"h x 9"w x 13"l which approximates the

> size of the resonators. So I'm thinking the next step will be to replace the

> resonators with the Spin Tech mufflers. The company claims superior flow

> rates and sound to competing performance mufflers (Magnaflow, Borla, etc..)

> so I assume superior flow rate and sound over the OEM resonator.

>

> Anyway, its nice to experience these cars as the engineers intended - cat

> free!

>

> Rich Jaffe

> 85 500 SEC Euro 260k

> 83 300 SD  195k

>

> The MB Coupes Website!

> W126 SEC Mailing List

> Postings remain property of MB Coupes, L.L.C.

>




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1996 S600 Euro "Scharnhorst"
1991 560 SEC Full Euro ECE
1991 560 SEC 226Hp/271ft/lbs:)
1989 560 SEC AMG (N.Amer 250/295)
1986 560 SEL AMG 6.0L 32V
1980 280 SE Euro
1978 300D TMU
1987 560 SEL 162K Midnight Blue on Gray RIP:(
2006 Z4 3.0Si M spec 6sp
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