Anyone with custom exhaust need some advise & sound clips




Unless you're gong to install a true dual, an X or H pipe is probably no different than the Y, in terms of performance or sound on a single mid-pipe setup, even with a cutout.
When you merge the output of an X or H, they are a Y.
kb has some sound clips posted.
and i couldnt tell you how that would sound, i dont know anyone that has run a set up like that. Sounds like your set on cut outs, why not just order a 2nd?
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Also, putting a cutout on just one exhaust before the "Y" pipe is not a good idea IMO. When you open the cutout, you essentially have different back pressures on one bank vs the other. The ECU ,may be able to figure that out an adjust, but that imbalance has to setup some vibrations and harmonics in the engine that were not planned for.
My suggestion would be; if you're not going to do a true dual and you want to use the cutout then use the "Y" merge connector you already have in the car and place the cutout into the mid-pipe. Where you place it in the mid-pipe depends on how much of the exhaust you want to hear.
You also don't want that cutout under the cabin if you plan to sometimes leave it open for an extended period of time. That would be a safety issue related to carbon monoxide.
Let us know what you do and how it works out....
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That way you could still use you cutout, have your quad look, and probably not much increased drone.
Keep in mind that if you just run a pipe off your current setup, with or without the cutout, one side will be muffled and the other will not. Will probably sound weird.
I just preferred true dual.....
Keep us posted.




Secondly, $500 is a lot for someone who doesn't know what they are doing with a performance vehicle. It is about right, IMO, for a shop that DOES know what they are doing and have experience doing it. (TIG welded butt joints aren't easy - MIG welded lap joints are not so difficult.)
I don't know the size of the cutout motor, but it would seem initially that the best places would be about a foot ahead of the input to the OE muffler or at the channel exit. This is just based on the routing of the exhaust in the 550.
That way you could still use you cutout, have your quad look, and probably not much increased drone.
Keep in mind that if you just run a pipe off your current setup, with or without the cutout, one side will be muffled and the other will not. Will probably sound weird.
I just preferred true dual.....
Keep us posted.


