my CS main cats are cloged,. i dont want to have stright pipes instead cause of the check engine light, i bought two new gts manifold and they are made exactly like headers but with cats on,. im gonna have them installed tom. u guys think im gonna gain any HP with them??
i already have an ecu tuning (20 HP gain), fabspeed secondary cat bypass installed, and k&N air filters...
i have two magnaflow mufflers im thinking of installing what do you guys thing??
looking forward for some suggestions..

 

pics???

 

ill have them on soon,.. are you having trouble with the primary cat delete??
o3evoIII you think its a good idea if i install the magnaflows or keep stock with the new cats??

 

I was just curious about what those headers look like. No issues with the primaries at all!


Yea man it should be fine with the new cats and magnaflows! Do it! Lol