I recently purchased two magnaflow high flow cats (2.5" in/out) and a magnaflow x-pipe (2.5" DIDO & 2.5" core, 12" total length) from Mr. Troyer. I already have two Flowmaster 40 series 2 chamber mufflers. My plan is to replace my factory cats with the high flow cats and to place the X-pipe right after them. My plan is to run pipes out the back. My questions are: 1.Is it best for me to place the X-pipe as close to the cats as possible? And if not then where should I place it? 2. How far back should I place the mufflers from the X-pipe? I'd like for it to sound deep and powerful, but I do not want to lose much power. Any input would be greatly appreciated. Thanks in advance, Alan.

 

Are you taking the factory y-pipe out? If not not sure you need a y and x pipe

 

Yes, I plan to have the Y-pipe cut off and the x-pipe welded in right behind the cats. This is because i plan on running dual, as I have 2 flowmaster mufflers that i recieved for christmas. I figure that since I don't have to purchase the mufflers (i'm a college student so money iks tight) then i might as well run dual.

 

keep x pipe as close to cats as possible for best scaveging effect,i'm putting my 4x9x14 maganaflows as close to rear axle as possible to keep sound away from cab and out the pipe-phil

 

Thanks for your input openclasspro#11, that is very helpful advice.

 

I would put the cats as close to the x-pipe just like what openclasspro#11 said. Put the cats in front of the x-pipe. You going to get some headers or keep stock manifolds. If you're going with some high flow cats I would get some shorties. That would then sound real good coming from that 5.4

 

Yesterday I spoke with a guy up here in Flagstaff AZ about the cost to put on my exhaust. I told him that I would supply the high flow cats, the x-pipe, and the mufflers. I asked him for a quote to: cut off my factory cats and y-pipe, weld on the high flow cats and x-pipe, then to put new pipes in and weld my mufflers in, and run it out the back. He told me that it would run around $350, which would not include the tips. All in all, I was quoted around $450 for everything which would include the tips. This seems a bit high to me (I'm a college student). Any input would be very helpful, b/c I want everything done right but would like to spend a little bit less than the quoted $450. What do ya'll think about the price of the quote? Also, does anyone know anywhere around flagstaff (within a few hours of here) that is a good place that I could call? Any input would be greatly appreciated. Thanks, Alan.

 

IMO you having everything welded together, bending pipes(depending on how the pipes are bent can increase the price, ie: using a pipe crimper is not a real good way to bend pipe is cheap unless the bender is very experienced but if other methods are used which in this case probably not going to be used like mandrel bends, are expensive) Since you're supplying the mufflers, x-pipe and cats to all be welded to piping, labor labor labor costs.