Doug Thorley Headers

THY-306Y1-C

Doug Thorley Headers THY-306Y1-C Exhaust Header for GM 454 Class 'A' Motorhome

EAN: 0812721020263

UPC: 812721020263

Headers

Made in the USA with limited lifetime warranty
Extra thick 14GA tubing and 3/8 inch thick flanges
Ceramic coated inside and out
Kit includes all required gaskets and/or installation hardware
CARB approved, 50 state smog legal

Doug Thorley Headers THY-306Y1-C long tube tri-y headers deliver the ultimate in performance and gas mileage for your 1987-1994 GM Class 'A' Motorhome with the P-30 chassis. Doug Thorley Headers is the originator of the tri-y header design which is the most efficient way to increase horsepower and torque over a broad RPM range, and more importantly increases fuel efficiency in your motorhome. The headers are manufactured using heavy duty 14GA steel tubing, and super flat 3/8 inch head flanges. They are then silver ceramic coated inside and out, which looks great, drastically reduces under-hood temperatures, and creates a strong barrier to protect the headers from the environment. APPLICATION SPECIFICS: 1987-1994 GM Class A Motorhome with P-30 chassis, Turbo 400 transmission (P-R-N-D-2-1), 3 inch catalytic inlet, will not fit D-port cylinder heads, no air injection fittings.

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