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Doug Thorley Tri-Y Headers 630Y-C

Doug Thorley Headers 630Y-C - Doug Thorley Tri-Y Headers

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Headers, Tri-Y, Steel, Ceramic Coated, Jeep, 5.2L, Pair

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  • Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

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Brand: Doug Thorley Headers

Manufacturer's Part Number: 630Y-C

Part Type: Headers

Product Line: Doug Thorley Tri-Y Headers

Summit Racing Part Number: DTE-630Y-C

Header Style: Tri-Y

Header Material: Steel

Header Finish: Silver ceramic coated

Weld-Up: No

Primary Tube Diameter (in): 1 5/8 in.

Collector Attachment: Stock flange

Collector Diameter: 2.500 in.

Tuned: No

Primary Tube Gauge: 14-gauge

Flange Style: Standard

Flange Thickness (in): 3/8 in.

Bolts/Studs Included: Yes

Gaskets Included: Yes

Reducers Included: No

Cross Over Pipe Included: No

Catalytic Converter(s) Included: No

Motor Mounts Included: No

Transmission Mount Included: No

Quantity: Sold as a pair.

In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

Thorley headers are designed to outflow your stock exhaust manifolds. These headers increase gas mileage and give your engine more horsepower across the entire rpm range. The Tri-Y configuration builds the most power in the middle rpm range, which is great for towing and steep grades. To make these headers last, Thorley made them out of durable 14-gauge mild steel with 3/8 in. thick flanges and 5/16 in. collector rings. To prevent leaks, these headers have an O-ring welded into the flange, in addition to the high-temperature gasket provided. Unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer. This includes components like cylinder heads, chassis, steering, motor mounts, body mounts and bushings, etc. If your vehicle is using aftermarket components, parts from other applications, or custom altered parts, then it is the installer's responsibility to verify fitment.

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2 Customer Reviews for Doug Thorley Headers 630Y-C - Doug Thorley Tri-Y Headers

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A nice fit

Summit RacingSummit Racing Verified Purchase

These were the best modification I have made to my ZJ. I am pleased with the quality and how these headers fit. The only thing they could make better would be an adaptor to the cat that did not need to be welded.

1 of 1 found this review helpful.

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Reviewer: TONY from NM

Date: April 26, 2014

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Dug Thorley Headers 630 Y-C

Der Krümmer hat eine gute Qualität,Leistung und Klang ich bin sehr zufrieden damit.

0 of 0 found this review helpful.

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Reviewer: MATTHIAS from Germany

Date: November 02, 2014

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Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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