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Old 06-23-2010, 08:48 PM
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which exhaust?

Well I've been running the spartan 210 tune on my truck for a while now and have recently been considering putting a 4 or 5 inch exhaust system on with the down pipe. My question is with that tune and occasionally the 250 am i fine with the 4 inch system or should i spend the extra money and get the 5 inch and is there some type of connector i can get that will allow be to hook the larger down pipe to my cat and dpf in case i need to do an emissions test in the future? what systems have been workin best for you guys? thanks in advance for any help!
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Old 06-23-2010, 09:03 PM
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I recommend an MBRP DPF back exhaust. 4" or 5" will get the job done. 5" looks and sounds better, but the 4" is plenty. As for the kits, they come with a reducer to hook up to your DPF. If you go with a 5" kit, you will have to get a 5" to 4" reducer as well to match up with the DPF/CAT delete. 4" would most likely fit right up to your delete pipe with some minor workage.

As for the downpipe, I recommend the Powerstroker67 pipe that DPFDeleteKits.com offers. It is amazing quality and it will hook right up to your DPF if need be.

Last edited by 08stroker250; 06-23-2010 at 09:08 PM.
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Old 06-23-2010, 09:23 PM
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def MBRP is the way to go
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Old 06-23-2010, 09:34 PM
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should i upgrade my dpf delete pipe to a 4 inch? would leaving the stock size pipe in be counter productive to getting the down pipe? has anyone noticed how much this lowered their egt's?
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Old 06-23-2010, 10:09 PM
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MBRP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Old 06-24-2010, 10:56 AM
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should i go with one with a muffler or without?
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Old 06-24-2010, 11:09 AM
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If you go 4" don't do the muffler, if you go 5" the muffler would be a good option.
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Old 06-24-2010, 12:08 PM
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I like my 5" with a muffler better than when it was straight piped.
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Old 06-24-2010, 12:11 PM
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the "muffler" that comes with the 5" kit, i guess u can call it a buffler, looks like pipe with dents in it ha, not much of a muffler to me.

the muffler gave me a better tone than the straight piped did
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Old 06-24-2010, 02:15 PM
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I would get rid of the 3.5" piping if you have any and go with a full 4" or 5" system for best results. A muffler is not necessary as the trucks remain rather quiet inside the cab, but are very throaty outside. If you want to keep the noise down though, definitely get one.
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