Tutorial: Install a header on your 2003 Subaru WRX or STi

[iluvmyEJ20]

how did you take off the heat shield from the driver side?...my heat shield is surrounded my o2 sensor..i have no room to loosen the o2 sensor

[sergsrt8]

so would unequal length headers still give you that boxer rumble...

[nukem384]

@sergsrt8 yep

[scoobysti1000]

hey mate, whats the differance between equal length headers and uneqaul length headers? im looking 2do them 2 my 03 sti. thanks.

[nukem384]

@scoobysti1000 equal length headers render more power, but you lose the boxer rumble as a result. thats really the only differences.

[getalife04]

@nukem384 To me the 10-15 hp gain isn't worth losing that rumble lol.