[Merc6]

Change the K&N filter to Amsoil and check gaps.

 

[brian v]

Welcome to the cruze talk Be cool stay cozy Keep Cruzen And best wishes!

Check your spark plug gaps . What model and year ?

 

[cdb09007]

You could also dip the speaker rings while your doing the other trim, they simply pop out with a butter knife and are easy to dip while your doing the trim.

Also; debadge, LED convert the interior lights, regap the plugs (or get copper plugs), VG Sharkfin.

All relatively cheap/easy mods.