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Old 05-22-2005, 09:49 AM
Don Don is offline
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Join Date: Aug 1999
Location: Ellington, CT
Cobra Make, Engine: Classic Roadster 351W, T5, Red & White
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Default CR Side Pipe Rebuild

A recap on another approach to a side exhaust system, My objective, for the long term, was to reduce the sound level below what most would consider to be normal for the Cobra. I accepted in advance there would/might be a reduction in power, but for my recreational only type of street driving, that was more than OK.

This was the 2nd time redoing the side exhaust system having previously used a muffler from Arizona exhaust. My understanding is Lucien is now retired. Great sound for a V-8, but it was loud.

I searched for a muffler that would approach being quieter , could not find one with a 4" case, 30" length with tapered 3" ends. that met my desires. Called a few of the muffler manufacturers, they had considered a quiet muffler for the Cobra , but doubted whether there is a market. OK, then I would use multiple components and hope for the best.

Purchased the Lo-bak auger muffler with a 5/8" center tube from:

Dave Stuart
Racing Products & Muffler Co
941 West A St
Hayward, CA 94541

510-783-3714


Prior to the muffler , installed the Car Chemistry 3 disc system with the 1/2'' center tube cap

http://www.carchemistry.com/ccexhaust.html

After the muffler , installed the Vortex Insert Cone:

http://www.secureperformanceorder.co...ProductID=2476

For coating, used Swain Technology Ceramic Coating:

http://www.swaintech.com/race.html

A thread on Swain Technology:

http://www.clubcobra.com/forums/show...threadid=61703

The Swain coating is white only, personal desire was for black. Sprayed the side pipes with 1800 degree high temp exhaust paint purchased from Bill Hirsch


http://www.hirschauto.com/newpages/paint.htm

For those in the NorthEast the modifications were done by:

Rick ( Owner )
Frederick's Autoworks
408 Somers Road, Route 83
Ellington CT 06029

860-875-6683

Rick filled all the welds joining the muffler to the inlet and outlet for a better appearance, looks like one continuous system rather than individual pieces


Overall, very pleased with the end result even though still a bit louder, not much, than I wanted.

The appearance as noted above and ceramic coating by itself made the project worthwhile .
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