my friend has 4 to 5 inch stacks that he bought for his ford a long time ago and never used so he said he would sell me them for 200$ its the whole kit, will it work or is there something diffrent about it. his ford is a 98

 

itll work

 

go to a truck part dealer to buy two stack, one y piped and some 4inches pipe and build your own kit .its going to be very cheaper

 

I doubt itll be cheaper than $200.

 

No way that'd be cheaper... Only thing that will be diff is the down pipe obviously but those can be bought separate or you can get a reducer to go for the 4" down to 3" and reuse it