4" HPI mufflers
#8
Registered
Joined: Mar 2002
Posts: 2,142
Likes: 3
From: Miami Beach
that build up on them will come off in 5 minutes if you wash them with On Off bottom cleaner (muratic acid) they will look brand new, and maybe make them easier to sell. Use a brush and wear gloves its strong stuff but won't hurt the stainless.




