MBRP Stacks? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 4 (permalink) Old 02-16-2011, 12:39 AM Thread Starter
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MBRP Stacks?

i have really been wanting to get dual 7 or 8 inch stacks, i was told by someone that you need a exhaust brake to keep your backpressure, is this true or can i just get a good spartan tuner like i was originally gonna do
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post #2 of 4 (permalink) Old 02-16-2011, 01:21 AM
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Originally Posted by dmanmus View Post
i have really been wanting to get dual 7 or 8 inch stacks, i was told by someone that you need a exhaust brake to keep your backpressure, is this true or can i just get a good spartan tuner like i was originally gonna do
I'm going to be nice and just say do some research around this site. But in short the answer is 'someone' is full of ****.

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post #3 of 4 (permalink) Old 02-16-2011, 02:00 AM Thread Starter
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well i heard that you lose backpressure and my other friend has 6" duals on his 6.0 and he said he lost torque, anyway i can get back the lost torque?
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post #4 of 4 (permalink) Old 02-16-2011, 05:03 AM
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Some people have lost their mind. Put whatever exhaust on your truck you would like. The only thing that is going to make any difference is the size of the downpipe. 4" is the biggest you can go, which is an improvement. Don't worry about back pressure in the exhaust, and you will not lose torque.

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