sup people, i just installed a tdo518g turbo on my interga gsr. i noticed when it hits vtec it seems to hesitate for a split sec. now i know what your gonna say its normal, its just hittin vtec, well i had it for 5 months befor the turbo and it never felt like that. also there semes to be a smell like exaust in the drivers compartment when i turn on the heater. Any ideas!!!!!!