when i accel in first or second i hear the exhaust kinda pluse a little. it sounds like when you have wheel hop but instead of the tires it is the exhaust. i just noticed this. i replaced the spark wire about a month ago. could i have loose spark plug wire.

 

any ideas???

 

is it exhaust popping? no clue without more info.....

 

only pops when i shift. it is really hard for me to tell you the details. it only pluses when i accel in 1st or 2nd gear. free reving it is smooth.

 

if its an n/a it could be 5/6 ports opening up, and your not hearing it in 34 or 5 because your not in range or it opens too slowly to be noticable