Product Name: Doctor Diesel USA HIGH FLOW Exhaust Manifold & Up Pipes For 17-25 Chevy GMC 6.6 Duramax Diesel L5P
Manufacturer: Doctor Diesel USA
Manufacturer Part #: DD-448-1-DD508
Fitment Applications: 2017-2025 GM 6.6L Duramax Diesel L5P

Item Features:

Introducing our High-Flow L5P Manifold & Up Pipe set. Tubular exhaust manifolds made from thick wall 304 stainless steel. The Doctor Diesel USA Up-Pipe bellows are internally sleeved, made from aircraft-grade 304 stainless steel, and designed with increased inner diameter for higher flow. The entire Manifold and Up-Pipe exhaust system are designed to maximize power and flow characteristics, lower exhaust gas temperatures (EGTs) and accelerate turbo spool-up while increasing power, fuel economy, and maintaining reliability.

Features:

• Significant reduction in exhaust back-pressure
• Lower EGTs, better turbo efficiency and fuel economy
• Tubular 304 Stainless Steel construction 
• Two-inch Free-Flow up-pipes with sleeved bellows

Includes:

• Driver & Passenger Side Exhaust Manifold Gaskets
• EGR Gasket
• Driver & Passenger Side Up Pipe Gaskets

Fitment:

• 2017-2025 GMC Sierra 2500/3500 6.6L Duramax Diesel L5P
• 2017-2025 Chevrolet Silverado 2500/3500 6.6L Duramax Diesel L5P

PAYMENT:

Doctor Diesel USA accepts PayPal, Visa, MasterCard, Discover and American Express as forms of payment.

SHIPPING:

All orders placed Monday-Friday before 12:00PM EST will be shipped the same day via UPS Ground, USPS Priority Mail, or FedEx Ground. Tracking information will be automatically uploaded to eBay when the item is shipped. The address on your account MUST be verified. Additional shipping charges may apply to Alaska, Hawaii, Puerto Rico and Canada. Please inquire about international shipping and expedited shipping. Doctor Diesel USA is NOT responsible for any customs, import, or duty fees.

RETURNS:

All of our parts and accessories are returnable and refundable. You MUST contact us within 30 days of the shipment date. The item MUST be unused, uninstalled, in the original packaging and in brand new condition. All returns are subject to a 20% restocking fee. Doctor Diesel USA does NOT cover return shipping and you must contact us for an RA# (Return Authorization Number) prior to sending an item back to us.

FEEDBACK:

Here at Doctor Diesel USA we are committed to customer satisfaction. If you are satisfied with your order, please leave us 100% positive feedback. If for any reason you are not satisfied with your order or have any problems at all, PLEASE contact us and we will do everything we can to resolve the issue. We value your business and we are not satisfied unless you are.

ABOUT US:

Welcome to Doctor Diesel USA. Buy with confidence because we offer high quality products at unbelievably low prices. Complete customer satisfaction is our ONLY goal. Please contact us if you have any questions.