twins

[ScottWA]

Do any of the twin turbo manufactures use the stock exhaust? mine is already 4 inch from the factory does the twins kit bolt right up or change the exhaust? I want to order them but didnt know if i needed an exhaust system to.

 

[WUnderwood]

you definately need a bigger exhaust than stock, and I believe that most aftermarket ones will bolt up with twins

 

[Cummins Thunder]

You do have enough fuel to spool some twins, right?



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[osiris]

the relentless twins will bolt up to the factory exhaust i believe

 

[mattymac]

I also think the ATS kit will run the stock downpipe, not 100% though. Just remember 4 in is adaquate for big hp if its free flowing but if its noise you dont want twins are alot quieter than singles! Twins with a good 4in straight through muffler wont be a whole lot louder than stock!

 

[ScottWA]

truck sig

truck has aftermarket exhaust and a mbrp muffler and also edge hot juice with possibly some 100 hp sticks on the way

 

[Diesel Nut]

If you already have aftermarket 4" you'll be fine. I know the BD kit comes with a new 4" downpipe that will line up with you existing exhaust.



The ATS kit will use the stock downpipe on the 3rd gen, but looks like you are far from anything like that!



I have had excellent luck with my BD kit! Oo.