Originally Posted by BrianBrave
By the Numbers
Ratio or percentage gain in boost over stock @ Prices (from Code3, ASP and LET website) - sales may be on going - call to find out.
13.32% @ $650 = $48.80 per % gained = Code3
14.84% @ $970 = $65.36 per % gained = ASP 178mm
16.77% @ $850 = $50.69 per % gained = LET 181mm
19.35% @ $950 = $49.10 per % gained = LET 185mm
There you have it -- the Code3 pulley is lowest total cost and the lowest cost per % gain (barely) but is also the lowest in performance gain.
The 185MM pulley is $300 more but provides an extra 6% gain in boost.
I see where you're coming from. That's a good way to look at it too. The only problem with this theory is that all these pulley were tested on different cars in different locations on different types of dynos that were are set up different. These number could easily change all over the place if they were all tested at the same time on the same dyno with the same conditions. It's possible a Code 3 Pulley could make more than that on another car on another dyno. Likewise, the same change could make a 185mm yeild less. I can tell you, I find the numbers for the Code 3 dynos kind of low. It feels like alot more than 25-30. The NeedsWings intake is supposed to make more HP than the Code 3 pulley, but the gains I have felt are much higher than when I added the intake. Long story short, any pulley is going to make the car up considerably. I liked the ease of install and the factory/warranty friendly appearance of the Code 3. That's worth a couple of % to me. 2% varience in boost at the track isn't going to any noticable difference at the track or to your butt dyno. I like the Code 3, and I would buy it again.