I would say very little IF, IF, IF you get an adjustable model for the STAR system and place the FPR in the engine bay. That's the ket difference though: HRC has a short vacuum line to the stand-alone adjustable FPR, While STAR has a long vacuum line(to the back of the car) to a non-adjustable FPR that supplements the stock FPR.

Components are similar though.

HRC: Weldon in-line fuel pump, Bell Adjustable FPR, service fuel fitting(96+), Aluminum and Soft Fuel lines, check valve, fuel mapper

STAR: Walbro in-tank fuel pump, Vortech non-adjustable FPR, Metal vacuum line, check valves

Each fuel system has good aspects to it. I would pull different qualities from each fuel system if I were to design my own from scratch. From HRC, I you take most of their design including location of the adjustaBLE FPR save for the in-line fuel pump. From STAR, I like their use of an in-tank high pressure quality fuel pump.

Combining the two of these together would garner you the best of both worlds.


Jason
98' Eagle Talon ESi-T
Mitsu Super 16g Turbo(HRC)


http://springfielddsm.homestead.com/JasonsPics.html

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Jason ESi-T

04' BMW 325Ci
91' Nissan 240SX
98' Eagle Talon ESi (sold)