2017-2021 GMC Sierra 6.6L L5P Duramax Diesel 3.5" High Flow Exhaust Up Pipess Exhaust Manifold Header
2017-2021 GMC Sierra 6.6L L5P Duramax Diesel 3.5" High Flow Exhaust Up Pipess Exhaust Manifold Header
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Fitment:
2017-2021 Chevy Silverado 2500HD/3500HD 6.6L L5P Duramax Diesel
2017-2021 GMC Sierra 2500HD/3500HD 6.6L L5P Duramax Diesel
Package including:
2 x 3'' Downpipes with gaskets
Feature:
Upgrade the L5P to achieve higher-flow by bolting on PPE OEM-Length Replacement High-Flow Up-Pipes.
These direct replacements have a 46% larger flow area over stock, which results in a deeper-breathing power-plant, while maintaining the mandated Federal emissions standards of stock.
The Length Up-Pipes are manufactured from stainless steel. These new Up-Pipes include the superior internally-sleeved bellows, also manufactured from stainless steel.
This system is engineered to take the abuse of high temperatures and high pressures, while promoting increased exhaust flow and lower EGTs.
Customer Reviews
Great fit
Test pipes solid but doesn’t line up 100%, need to do some modification on it.
Great quality for the money. Welds are great and packaging was great. Shipping caused the outer box to be quite damaged but the product was perfect. I would order again in a heartbeat! No brainer!!
Looks nice, decent quality, and easy install
I just upgraded my exhaust manifold, and I'm super happy with it! 😃 The install was a breeze—everything fit like a glove. The stainless steel feels really solid, and I can already tell my truck is running smoother and more powerful. It’s been a few weeks now, and it's still performing great. Highly recommend this if you're looking to boost your exhaust system! 👍🏼
