Hey, I just realized OP has exactly what I have. I installed my headers and don't have any leaks or defects. The TS headers with Kinitex is a great combo, I also have a RSR GT2 cat-back. I have my stock y-pipe on until I get the HR (on the way). The sound is like music to your ears. It sounds amazing, especially when you're on the highway or between the buildings in the city. It backfires really nice too. I will post clips as soon as i install HR. Also, like OP wants, I have Ralco RZ pulleys installed. You can feel the difference the day of installation. I must say, all of these parts would make a much bigger difference if the car was tuned. (my next step) Let me ask, Should I get a plenum gasket AND a manifold, or just the gasket since I have a non-revup???

 

Spacer FTW. You will notice a big sound change too. Ppl claim no gains with both.

 

thats good to hear, manifolds cost a lot