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Discussion Starter #1 (Edited)
New to Diesels-recently purchased 06 Chevy Duramax. with all the bells and whistles. I am in the process of installing 4" exhaust and a new air filter system. My question is how much more horse power can I expect??? Seems to have a lot of power now. May install an Edge when the come available. I am posting a picture of my new baby and hope it comes thru.
 

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I did the afe filter and did not notice any gain at all on the butt dyno, the lbz intake is said to be very good and so I did not see a need to change anything but the filter.I did the 4" exhaust also, the turbo seems to spool up a little faster it is not much louder than stock, but it seems to be a little faster on the take off. once again butt dyno telling me this. I would say maby a 5-10 hp gain top's.
 

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5-10 hp is normal and you could get up to 15 hp with the right combo.

Turbo spool up will be quicker and your EGT - exhaust gas temperature should also go down which is a good thing.

Enjoy your new toy.
 
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