They're only $125. It's not like you haven't spent that or more on other cosmetic enhancements to your car
I don't have any before or after dyno sheets. In fact, I have NO dyno sheets.
In theory, these have to be an improvement:
- Smoother flowing silicone tubes vs. the accordion-style OEM rubber hoses
- Heat resistant silicone vs. OEM rubber
- They look nice vs. OEM accordion-style tubes
- Retain the factory airboxes which already get cool air vs. any short ram system that draws hot air from engine compartment
- Quick install vs. lengthy install
- Retain OEM MAF housing vs. changing diameter of MAF housing and creating lean condition
Is this setup a huge HP gain? Of course not.
But for about $200, you can improve the airflow, make the engine bay look nice and get a couple of HP at the top end.
The thing I noticed most is that throttle response is much smoother and the car is much happier to rev all the way to redline.