| 2003 - 2004, Lexus GX470 Burtman Industries is proud to offer these Doug Thorley headers for your 03-04 GX470 V8! This is a brand new item! These suckers give a 30+ hp/30+ ft lbs of boost, and up to 3-4 more mpg! The factory headers fail at around 100,000 miles and factory headers from your dealer start at $1,500! Save a ton with this new setup and got a ton of extra power and mileage. Also, check out
the Titanium Stud & nut kit which cuts install time by 2 hours! Also you'll want the Sprint Booster which feels like you added a programmer! This gets rid of all throttle delay whether you have headers or not, (headers make the delay more noticeable and this gets rid of it! Even customers that were going to re-gear their trucks, did the booster instead and totally wakes it up these trucks!
Stainless Steel Headers
2003-2004 GX470 4.7L V8
4.7L V8 (with air injection (now full SS air injection tubes)
Header Style: Shortie Headers or Long Tube Headers
Material: T304 Stainless Steel
Finish: Silver Ceramic Coated (after the headers are done, they are sent to the Ceramic coater. After they come back, you headers are submerged under water to check for air bubbles. Even a pin sized hole could turn into the size of a nickel in 5 years. If there are any bubbles, they are re-done, then ceramic coated again. When we say lifetime warranty, this is why they need to be perfect before they leave. This special coating helps reduce engine temp = cooler air going through the headers = more power and better mileage.
Weld Up: Yes
Primary Tube Diameter: 1-5/8"
Primary Tube Gauge: 14 Gauge
Collector Attachment: Weld to factory catalytic convertor for short tubes. Long tubes no welding.
Collector Diameter: 2-1/2"
Tuned: No
Flange Thickness: 3/8"
Hardware: Save 2+ hours with our Titanium Stud & nut kit
Gaskets Included: Yes
Reducers Included: No
Y-Pipe (Crossover) Included: No
Catalytic Converter(s) Included: No
CARB E.O. #: Short tubes carb approved 2023 (call for updates)
Warranty: Limited Lifetime to original purchaser
Notes: These stainless steel headers are a fantastic way to work some extra horsepower out of your GX. Plus, they are a much more economical way to replace the crack-prone factory manifolds than heading to your local dealership which cost over double the price. Non returnable custom made part. All American made, and backed by our lifetime warranty of course!
Jason Burtman's
Personal 4Runner Site Product Options:
Choose your headers:
Doug Thorley Y pipe:
Reg. Price: $1,200.00
Our Price: $ 859.99 | 
