I've got a 2004 CTS-v with the following performance mods: magnacharger (older style) with a smaller 2.8 pulley; CIA; Kooks 1 7/8 lt headders; stock catback with no resonator.
I only put down about 420 whp before my headders. I was producing 8.4 lbs boost. I expected headders to net me a pretty sizeable gain and drop my lbs boost. My tuner told me that he was worried that the stock catback may be too restrictive. Without a reasonator, how restrictive is the stock catback with the stock mufflers?
What could I expect to net from a 2.5 magnaflow system? Would I get the same results from just removing the stock mufflers and welding in some magnaflows?
Would I net a meaningful gain by going with a full custom 3'' system?
Thanks for the advice!!!
BTW, it is not an option to buy a corsa system with these style headders, and I don't want to spend 1.1k on a BB system.
I only put down about 420 whp before my headders. I was producing 8.4 lbs boost. I expected headders to net me a pretty sizeable gain and drop my lbs boost. My tuner told me that he was worried that the stock catback may be too restrictive. Without a reasonator, how restrictive is the stock catback with the stock mufflers?
What could I expect to net from a 2.5 magnaflow system? Would I get the same results from just removing the stock mufflers and welding in some magnaflows?
Would I net a meaningful gain by going with a full custom 3'' system?
Thanks for the advice!!!
BTW, it is not an option to buy a corsa system with these style headders, and I don't want to spend 1.1k on a BB system.