My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Diamond Eye Manufacturing 529021 Stainless Steel Performance Exhaust Elbow - 4-Inch 409

Manufacturer

Picture for manufacturer Diamond Eye Manufacturing

Part Number

529021
19 reviews
Sale Price

$65.48

2 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Diamond Eye Manufacturing 529021 is a precision-engineered 4-inch performance exhaust elbow constructed from durable 409 stainless steel. This mandrel-bent component is designed to maximize exhaust flow in diesel performance applications, reducing backpressure and improving engine efficiency.

Key Features:

  • 4-inch diameter for high-flow diesel exhaust systems
  • 409 stainless steel construction for corrosion resistance and longevity
  • Mandrel-bent design maintains consistent inner diameter throughout the bend
  • Precision CNC manufacturing ensures accurate fit and finish
  • Ideal for custom diesel exhaust builds and turbo applications

This exhaust elbow provides a smooth, unobstructed path for exhaust gases, making it an essential component for diesel trucks and performance vehicles. The mandrel bending process prevents crimping and flow restrictions common in crush-bent alternatives, delivering superior performance and durability.

Products specifications

Bend Angle

90 degrees

Mandrel-Bent

Yes

Outside Diameter (in)

4.000 in.

Quantity

Sold individually.

Tubing Finish

Natural

Tubing Gauge

16-gauge

Tubing Material

Stainless steel

Material

409 Stainless Steel

Title

Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-4in. 409 STAINLESS STEEL PERFORMANCE ELBOW-4in.

easy checkout

very satisfied

Great

Excellent seller thank you!!

So far so good. First time ordering from website

the product seems to work

Quick and simple. Great prices, great selection.

Order filled promptly. Very pleased with purchase. Highly recommend Autoplicity!!

good price fast checkout

fast and easy

Thank you.

Fast Shipping, Great price, Parts were well packed

it was great

Quick and easy.

Thanks for having the part I needed, and at a really good price!

Quick and easy. Website was easy to navigate via cell phone and checkout was fast and painless. Took over a day to get a shipping notification though. Would have been nice to had it for the weekend

Easy and straight to the point.

These guys have the best prices I could find by far, for the parts I needed. I have made two purchases from them so far and am sure there will be more. They ship fast and provide tracking information.<br>

Autoplicity offered the best internet price, and utilized Paypal for guaranteed customer service. Shipping tracking through UPS is accurate and customer focused. I'm very pleased with the retail experience, and will use Autoplicity on future orders and best prices.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy