best intake and exhaust upgrades?

[heliguy25]

anyone have any dyno number for comparison? looking to upgrade header back?! also anyone de modding their car and have parts for sale?

 

[mjorgensen Woodhouse]

Leave stock intake alone, Belanger headers and cat back with the Arrow PCM will get you 55-60 rwhp gains, both are in stock.

 

[johnk]

Hi Mark, in your experience how does the Gen5 with Belanger headers, cat back and Arrow PCM compare HP/Torque to a 2006 Gen 3 with Paxton, Corsa, and 1 pair of cats?

thanks
John