Exhaust Upgrade Beneficial?

[robrucker33]

Hi guys! I was just wondering if an exhaust updated would be beneficial with these mods I have?

Polini Hi-Speed Variator
Dr. Pulley 5.5 Gram 16x13 slider Weights
NCY CDI
NCY Decompression Tube
TVR Complete Intake Kit with Jets and filter (38 slow jet and 85 main jet)

Thanks guys,
Rob