a group of us from aussie have begun testing some serious gear to see just what this new Goat will be capable of....

 

ok

 

ah...

 

first modifications which will give the greatest increase in power will be headers/ cat back system, we have assembled every known manufactured header for the Holden / Pontiac.

ranging from 4 - 2 - 1 types, and straight 4 -1 type, also various cat back systems, inc single 3", dual 2.5" etc etc, various combinations.

 

the cold air intake is further modified, opening up a second hole gives it much better breathing as well as a deep induction roar, the paper element air filter is also replaced with a k & N type oil-bath unit. good for another 15-20 rwhp.

 

Are you guys actually getting the Pontiac version or are you talking about the Holden?

 

we are working on the holden version, but the pontiac should accept the same mods, it is the same LS1 motor,

the headers do not interchange between the F-body and holden Ls1's for obvious resons, and the air intakes are also different.

 

so far the DF 4-1 long tube headers , have shown the biggest increase with true dual 2.5" exhaust with an x-merge pipe.



they produced 68 rwhp more than the standard system, combined with the cold air intake, and a bit of tuning using ls1 edit.

this combination pushed the car to a geniune 12.90 sec pass down the 1/4.

next we will be looking at diff ratios , torque converters for the autos.

 

Sweet!!! :thumbup: :thumbup: :thumbup: :thumbup: :thumbup:

 

well so far this combination has proven to break into the high 12s, next will be aftermarket cam shaft testing.

we have assembled a large range, inc some american brands, comp , lunati, thunder racing... the list goes on.