Product Description
MBRP GM8424 3" Turbo Downpipe | 04.5-10 GM 6.6L Duramax
This product cannot ship to the state of California!
Fits in place of the factory downpipe. High flowing 3" downpipe makes for lower EGT's and up to a 15hp gain. Heat coated black and heat wrapped.
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fitment
Had to bend trans dipstick tube mounts to fit around. Another tha. That fits good and sounds good
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Really makes a difference
Fitment was perfect, heat wrap was installed nicely. Hardest part is getting out the original downpipe. Comparing the two side by side really makes you think what the engineers were smoking when they designed the OEM piece. Sound is the same at idle, but once you get on it hard these duramax motors sound "like a T-Rex roaring in Jurassic park" as my buddy says. SDP shipped it out nice and fast, I will be back for more goodies from them.
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SDP Downpipe easy install
Very good fit, easy install. Everyone talks about how hard the downpipe is to change out is messin up, hour to hour and a half most. Great product, with fast shipping.
