2008 Grand Prix GXP - Hogan DP & Open cutout 35-90

Quick shaky video done coming back home. I was focusing on the road ahead and not keeping the camera straight. Before you ask 1) Traction off light 2) SES light due to no cat and no O2 sim/tune 3) TPMS sensor replaced on LF and not programmed

WOT 3-1 downshift at 35mph to about 90; just left it in drive so you can tell how much it short shifts the 2-3. Also at the start you can tell the "helicopter" resonance when in 4 cylinder mode with the cutout open. I have the cutout placed as far rearward as possible right before the Y-split for the mufflers.

Category:

Autos & Vehicles

Tags:

• gxp
• ls4
• v8
• impala
• monte
• carlo
• ss
• ls1
• ls7
• ls1tech
• clubgp
• pontiac
• chevy
• chevrolet
• cut
• out
• cutout
• catless
• cat
• less
• lsx
• ls2
• ls3
• lsa
• ls9

[orrin4]

Beautiful, LOVE! The sound.