new 6.2 owner first mods
#11
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.. Your stock exhaust is all mandrel bent. Replacing it with another mandrel bent exhaust system of the same size is a huge waste of money. Replace the factory muffler and call it a day. Unless you are upgrading to a 4"
Also the drop in air filter and replacing the mid pipe will yield noticeable gains with a tune.
Also the drop in air filter and replacing the mid pipe will yield noticeable gains with a tune.
#19
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Lol guys I'm putting 1 7/8 headers with a 3.5 ory pipe, dyna max race bullet infront of a aerochamber and exiting before the rear tire. I'm not trying improve the flow
#20
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That flat piece in your exhaust isn't going to hurt HP at all...... It still have the same Area as a round pipe, its just flattened to clear the Transmission crossmember
Exhaust Clip - 2011 GMC Sierra 6.2L Pacesetter LT's Magnaflow SI/DO Muffler - YouTube
20-90 Punch - 2011 GMC Sierra 6.2L Tuned 20-90 Roll - YouTube
Exhaust Clip - 2011 GMC Sierra 6.2L Pacesetter LT's Magnaflow SI/DO Muffler - YouTube
20-90 Punch - 2011 GMC Sierra 6.2L Tuned 20-90 Roll - YouTube