The heat exchanger is just a waste of money in my opinion. The stock one is just fine unless you insist on running one of the larger pulleys which you will not see any better times at the track unless you add alcohol injection. If you add the alcohol injection then you still do not need the heat exchanger because the alcohol injection will cool the intake air a hell of a lot more than the heat exchanger would.

There are people on here that spent 2 or 3 times the money on mods yet they do not run any faster times than the guys that spent a lot less.

Just do your research on here, compare the track times and see what works for you.

The lightning pump ($75) or the johnson pump ($175+) are a mod you really should invest in since the stock pumps seem to have a huge failure rate.