well im llokin for free mods ive done most of them i see on here but i wld like louder turbop quicer boost and i want a bov bout i rele dont have the money right now if there is a way to get tht sound please let me kno and also any tips u can give me on a 2002 2500hd custom 31/2in straight pip in front of tire superchips and thts it

 

Well you can remove the stock air intake and buy a giant $30 filter that some if the semis use.

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look into the diy sticky

 

a good one to do is the eldo goin into the turbo. its resticted from the factory. fleece performance will hone it out. lets more flow through and should build boost quicker. it cost bout 75 bucks. the other thing is the down pipe coming off the back of the turbo. now its 3 1/2. the bigger u get that the better it flows. same as the elbo. look into a down pipe and a 5 inch exhaust which is a little more expensive but for sure the elbow