Originally Posted by SS_Firehawk

No need for driveshaft, it's already carbon. HFC's and Long tubes can only be done with Fast Intentions or Motordyne's exhaust systems. Or you can buy a mid pipe back of anything and just buy a Motordyne Y pipe and HFC. Both excellent companies. Most who run long tubes, don't use a cat.

If you are trying to reach 400whp, I say go for a GTM supercharger kit and breather mods. Don't worry about the headers. The car has a decent set of equal length shorties anyways. Get an oil cooler asap, 25 row minimum. Replace the brake lines and pads, get some good fluid for your brakes. If you are trying to buy all that, expect to pay over $20k regardless of who you buy from, we have to pay the Z tax.