2001-2016 GM 6.6L Duramax Up-pipes Bolt Set (12pcs)

OEM design with washers. Thread length increased to accommodate washer thickness. Two screws are 5 mm longer to accommodate the downpipe mounting bracket. Our design preserves thread engagement whereas other companies do not.

All 12 screws will be alloy steel 12-point screws in black oxide finish, class 12.9.

(10) M10 x 1.5 x 32 bolt and washer
(12) M10 washers
(2) M10 x 1.5 x 37 bolt and washer

• OEM design with washers.
• Thread length increased to accommodate washer thickness.
• Two screws are 5 mm longer to accommodate downpipe mounting bracket.
• Our design preserves thread engagement whereas other companies do not.

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California Proposition 65 Warning - P65warnings.ca.gov