IS300 Full Exhaust 

@sprpacman haven't dyno'd it but maybe 10-15 whp, maybe a little more than that. not entirely sure.

nice sound bro.. but if u put only the headers and y-pipe .. the sound will be low or high ..?!

nice sound I was thinking of changing mine the exact same way you did.Was there alot of dyno time spent? Who did you take it too? Any tips thanks.Oh yeah what was the cost.Y-195.00,muff 500,head300? thanks

@johngorgis Yeah. SRT intake

headers (used)- $120 y-pipe (used)- $80 exhaust (used)- $300