Originally Posted by
TeKKiE 2.5" DP would benefit more than 2", IMO.
Spacers will also provide benefits on N/A applications.
Originally Posted by
coach bigger secondary is more top end power.
Brent
Well, the RR doesn't have as much top end as the non-rr sr20's So if that is the case, then smaller dia primaries will increase low end grunt? (2" vs 2.5")
(currently running HS gen 5 and they are cracked to hell, rusted badly and flex pipe is fubar...not worth saving)