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Doug Thorley THY-310Y-1-C Silver Ceramic Coated Exhaust Headers
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Compatibility - Please Verify Your Vehicle Above.
Please be sure to use the supplied Compatibility Chart above to find your vehicle and correct fitment. Check the "Notes" for important part detail.
If you have questions about Compatibility or Vehicle Fitment
*Does not apply to universal parts.
All Doug Thorley Header models are constructed of 14-gauge steel for ultimate longevity. Custom designs and tunes are engineered to perform and fit flawlessly under your hood. Coated inside and out with a Ceramic-Thermal Coating that protects your header from the elements and withstands up to 1,400 degrees F, these Doug Thorley headers promote exhaust velocity and absorb up to 40% of the engine temperature to keep your engine cooler and running more efficiently.
Your Doug Thorley Header comes with O2 sensor bosses, smog equipment, and a custom gasket for 50-state legality and a leak-free fit.
Backed by a Lifetime Warranty
No smog fittings
Include a race only Y-Pipe
Drive: 2WD & 4WD
Not legal for use in California on pollution-controlled motor vehicles
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
We are an Authorized Dealer of Doug Thorley
Manufacturer: Doug Thorley
Part Number: THY-310Y-1-C
Finish/Material: Ceramic Coated
Part Note(s): PRIMARY / COLLECTOR:1-5/8" / 2-1/2" HEADER EXIT:PASSENGER Notes: NOT LEGAL FOR USE IN CALIFORNIA ON POLLUTION CONTROLLED MOTOR VEHICLES,, NOT LEGAL FOR USE IN CALIFORNIA ON POLLUTION CONTROLLED MOTOR VEHICLES,SOME LATE MODELS MAY REQUIRE DRILLING AND TAPPING END HOLES IN HEAD
Application(s): 1999-12 Cadillac ESCALADE 4.8L-6.2L 2WD / 4WD OFF-ROAD "RACE" USE ONLY
1999-12 Hummer H2 4.8L-6.2L 2WD / 4WD OFF-ROAD "RACE" USE ONLY
1999-12 Chevrolet AVALANCHE 4.8L-6.2L 2WD / 4WD OFF-ROAD "RACE" USE ONLY
1999-12 GMC YUKON 4.8L-6.2L 2WD / 4WD OFF-ROAD "RACE" USE ONLY
1999-12 Chevrolet TAHOE 4.8L-6.2L 2WD / 4WD OFF-ROAD "RACE" USE ONLY
1999-12 Chevrolet SUBURBAN 4.8L-6.2L 2WD / 4WD OFF-ROAD "RACE" USE ONLY
1999-12 GMC Sierra 1500 4.8L-6.2L 2WD / 4WD OFF-ROAD "RACE" USE ONLY
1999-12 Chevrolet Silverado 1500 4.8L-6.2L 2WD / 4WD OFF-ROAD "RACE" USE ONLY
*** Photo(s), Color(s) or Video(s) may be a generic representation of product ***
Availability: 2 Day(s) to ship
Additional Info: Although we are a stocking dealer, admittedly we do not keep every part number in stock all the time . Some pieces sell only one per year and are not justifiable to keep on our shelves. With that we do not intentionally list parts we do not have but from time to time a Back Order can occur. Many parts will ship directly from the manufacturer and could be subject to delays depending on their on-hand inventory. Please contact us before placing your order to verify inventory.
Shipping Dimensions: H " x L 35.00" x W 10.00"
Shipping Weight: 30 lbs.
Domestic Shipping: The shipping cost on this listing or the "Free Shipping" is for the lower 48 States. We no longer ship to PR, GU, AK, HI & APO's through please if you have any questions.
"Signature Required" is recommended however you must request this via . For your convenience we will not automatically set the shipment this way. If you do not request a signature requirement and the delivery company shows the package has been delivered - and it is not there - it is between you and the carrier. Signature Required protects packages from being left on your doorstep but is inconvenient if you aren't home to collect the package. We will not be responsible for lost or stolen package due to a signature requirement not being requested.
International Buyers: Shipping cost is for transportation only and does not include any duties, taxes, fees or brokerage charged by carriers or your country. for a shipping quote.
All items are designed for Left Hand Drive (LHD) USDM vehicles and may not have been tested on foreign platforms or Right Hand Drive (RHD) vehicles. Please do your research prior to making an International purchase to ensure the part fits your vehicle.
Never Enough Auto
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Never Enough Auto is not only an excellent online source for your aftermarket needs, but we're also a fully stocked, fully staffed retail store as well. Never Enough Auto is not another faceless Internet company. We're a real company. We use what we sell, we trust what we sell, and through our relationships with the manufacturers we back up what we sell. A warranty is only as good as the company you purchase from. We're a company of enthusiasts that work on our vehicles just like you. We don't play games with customers and we always put ourselves in the customer?s shoes before making any decision. We are automotive enthusiast and consumers just like you. Never Enough Auto is a company large enough to save you a ton of money, but small enough to deal with customers on a personal level. That is something we take a lot of pride in. We don't want you to just place an order - we want to start an equally satisfying relationship with you. We want to outfit your current vehicle, and the next, and the next.
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Never Enough Auto accepts all forms of payment. If you wish to pay by Credit Card, and not do so through Paypal, you must call our office to make your payment. We accept Visa, Mastercard, American Express, Discover, Paypal and Cashiers Checks. We only accept funds in USD, and payment for your purchase is expected within five calender days or an unpaid item dispute will be opened against you.
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We no longer ship to PR, GU, AK, HI & APO's through please Contact us if you have any questions. If you provide a PO Box please also provide a physical address since most items do not ship by USPS.
International customers please contact us for a shipping quote. Most items will ship USPS Internationally anywhere in the world.
Inside the contiguous US most items ship by either UPS or Fed Ex and not USPS. Items will ship by the carrier of our choice based on our experience.
Items will only ship to the address on your payment - it is your responsibility to make sure the address you provide with your payment is correct.
International quotes are for transportation costs only and do not include duties, taxes or brokerage charged by carriers or your country. Those fees we are not capable of quoting for you and are not included in the payment required from you by us.
Shipping and delivery times quoted on the listing are for the lower 48 states only. International Shipping is something we do a lot of but sometimes it can create a significant delay. Parts needing to be transferred to be shipped with your carrier of choice, customs, carrier delays - all things that can delay your packages' shipment or delivery. This is not something we have control over - ask before you place your order.
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Once payment has cleared and has been received, your order will be processed. When you make a purchase from Never Enough Auto and pay for that item, under most circumstances your order will be processed within one business day. You will receive an email from us labeled Receipt from Never Enough Auto and attached to that email will be your receipt. This information will be sent to the email address on your payment. We send these emails to EVERY customer. Your tracking number will be entered into and you'll automatically receive a notification from them.
If you have a problem with your order, please contact us before leaving response. Customer Service is very important to us and we'll do our best to work with you. We prefer you call us so we can come to an agreement as discussing a problem by phone is more productive than by email.
We will not leave response for you until it is received from you. Positive response will automatically be left for you when you leave positive response. This is done through automation and is our way of knowing that a transaction is complete.
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General overview for customers wanting to return an item not due to an error of NEAA - Actual cost of shipping to the customer is NOT refundable regardless of "free shipping" and will be deducted from the refund amount - Customer responsible for return shipping - 20% restocking fee may apply.
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