[DeTomaso] Wilkinsons new GTS style exhaust system

michael@michaelshortt.com michaelsavga at gmail.com
Fri Feb 17 16:16:29 EST 2012


Please post photos from box opening to final install.

Michael Shortt

On Fri, Feb 17, 2012 at 4:14 PM, doug351c <doug351c at gmail.com> wrote:

> I just took delivery of one of Wilkinson's new complete GTS style exhaust
> systems (headers, exhaust pipes, mufflers & resonators).  It comes in two
> versions, stainless steel and mild steel; I opted for the stainless version
> (IT'S DROP-DEAD GORGEOUS!).  They're currently available at what Steve
> calls
> a special price of $1285 (stainless) or $885 (mild steel).  IHMO, this is a
> real steal - pun intended.
>
> They're modeled after the factory 74 Pantera GTS exhaust but claims to flow
> far better and from that stats below, this should be a true statement.
>  Both
> versions' resonators are made from #209 stainless steel and then polished
> to
> look like the factory chrome.  The exhaust pipes, mufflers and leading
> portion of the resonators are painted black to match the factory look.  The
> stainless version substitutes #209 stainless steel for the header, tailpipe
> & muffler case and the tainless headers come polished.  The steel version’s
> headers are silver-zinc plated.
>
> Steve said they found that the resonator ID was the largest restriction in
> the factory system so they enlarged it's ID by 6mm (1/4”) and redesigned
> the
> muffler innards for better flow.  Of course, both the header primaries and
> the exhaust pipes are mandrel bent.  The complete system was developed on a
> dyno using a 406 Cleveland stroker and he tried many combinations to arrive
> at the system’s final configuration.  A cool feature is that their ball and
> cone type collectors will allow you to positoin them to look just right on
> the car.  He recommended the headers be wiped down with alcohol, after
> installation, but prior to starting the engine, to prevent fingerprint
> stains.
>
> Here are the stats:
>
> Header flange thickness:  9mm (0.35”)
> Header primary pipe OD:  44.8mm (1-3/4”)
> Collector OD: 63mm (2.5")
> Collector type:  ball & 3-bolt collar
> Collector 3-bolt collar thickness: 11.2mm (0.44”)
> Exhaust pipe 3-bolt collar thickness: 7.2mm (0.28”)
> Exhaust pipe OD: 60mm (2.4”) OD
> Resonator OD: 76.3mm (3")
> Resonator ID: 47mm (1.8")
> Muffler: 9-3/4" wide x 9-1/4" long x 4-3/4" thick
>
> Doug Braun
> blue73L #5505
>
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-- 







Michael L. Shortt
Savannah, Georgia
www.michaelshortt.com
michael at michaelshortt.com
912-232-9390


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