Comp Cams 1.589" Beehive Valve Springs Aerodynamic-Accessories Engineered with 32 levels of

Engineered with 32 levels of damping force adjustment

Does this system include the resonator or is it straight pipe

0L Coyote with the SPDZ1 1 7/8" Longtube Headers & X-Pipe System

Spyder GTS 1995 - 2004 Mitsubishi Eclipse RS 2007 - 2012 Mitsubishi Eclipse SE 1996 - 2011 Mitsubishi Eclipse Spyder GS 1996 - 1999 Mitsubishi Eclipse Spyder GST 2001 - 2012 Mitsubishi Eclipse Spyder GT 2008 - 2011 Mitsubishi Eclipse Spyder GT-P

or do I need to drill holes

Comp Cams 1.589" Beehive Valve Springs Aerodynamic-Accessories Engineered with 32 levels ofCOMP Cams Valve Springs By Design BEEHIVE Unique shape provides better valve control while reducing weight and lengthening life Increased harmonic resistance increases stability and reduces damaging harmonics Oval multi arc shape places maximum surface area at the point of highest stress Revolutionary design yields more stability, higher RPM and more horsepower Less valve train reciprocating mass in motion The revolutionary design of COMP Cams