Need some advice on whether to install downpipes or not. A friend told me that it won't amount to much and i should save my money and just wait till i upgrade the turbos. I'm looking at faster spool up and response for now. I kinda trust the advice i got considering my friend built a 10.2 sec. Z at one time. My mods are: Stillen SMIC/Nismo 555's/HKS EVC/Stillen Hiper exhaust/homemade testpipes/JWT ECU/JWT clutch/& JWT dual pop. Will downpipes be worth it or not? I plan on upgrading the turbo's within the next year.