hsp monster truck
11-20-2013, 02:33 AM
#1
hsp monster truck
just a quick question from a newbie l bought the afthermarket exaust and header pipe and was just wondering if this will change the tune l know its a silly question but if l dont arsk l wount know thanks in advance people
11-20-2013, 01:01 PM
#2
yea it will change the tune but it shouldnt be by much, that is if your original tune was right 
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