The original Superformance GT-40 headers were developed to fit a stock OEM 351W exhaust port configuration.  With the development of the SBF "Large Port" heads from Ford Racing , AFR or Dart the stock Superformance GT40 headers cause some restriction.  To correct this Firefly  developed these "GT40" high flow stainless steel headers.  All headers are ceramic coated inside to maximize performance. Outside can be polished or ceramic coated.

Click on any picture to enlarge

Installed

 

Click to view this GT-40 in action

Click for Customer feedback

SBF "Large Port"  head

    FPP "GT40"  headers

       

 

       

Dyno results

Click to view the Dyno run

FPP Customer Cars

PRICING

Under Development

Call for availability

*Mufflers Sold Separately*

Allow 8-10weeks with 50% deposit

TO ORDER

Call 606-798-6825

  or

 Click here

---------

Installation available @ Craig's Cobras

 $600.00

 

 

Firefly Home

 

 

   

 

 

 

 

 

 

 

 

 

 

 

 

Hit Counter