Originally Posted by GregoryGR

Yes, you have a point here...

I could save on shipping & labor costs. The price for the performance pack & the headers are not negotiable (i think) since they are on Kleemann's official price list. However, if bought both at the same time, i could have pressed for a better price.

I didn't go with the headers, because i m planning to buy them during Christmas.

It's a start though.

My optimistic (very) calculations give the following:
i. Performance pack (pulleys, k-box, sports filter) - 210hp total
ii. Kleemann headers - 230hp total
iii. Kleemann sport catalyst - 235hp total
iv. Quad exhaust - 240hp total
v. Bigger intercooler - 250hp total

Am i too optimistic?

When i finish with all these, i will dyno it.