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Precision Turbo and Engine

PRE PBO085-2000

shopify In stock - Ships Today if ordered by 5pm EST


The Precision Turbo PW46 Wastegate is a 46mm external wastegate with v-band flange connections. With over 60 years of turbocharger development and racing experience, Precision Turbo takes great pride in providing the best external wastegate on the market today. Precision's PW46 Valve is designed to be a direct replacement for most manufacturers flanges. Every valve is warranted to be free from manufacturer's defect for 12 months or 12,000 miles!

The PW46 is constructed from the highest grade components, inside and out. From the high temperature 347 stainless steel investment cast valve body to the Kevlar reinforced diaphragm. The investment casting process leaves you with a smooth internal surface finish for better flow and accurate boost control. A satin black anodized wastegate cap finished off the look for long lasting, low key appearance.

Click HERE to download the Precision Turbo PW46 Instruction Manual.

Precision PW46 Features:
  • 347 Stainless Steel Investment Cast Valve Body
  • Nickel Chromium Alloy Valve Seat
  • 6061 Billet Aluminum Housing w/ Black Satin Anodizing
  • 17-7 Precipitation Hardened Springs
  • Compatible with most aftermarket boost controllers (manual and electronic)
  • Direct Fit Replacement for most 44mm units
  • PW46 46mm Wastegate Valve Assembly
  • All 5 Springs (Red & Green Pre-Installed - 15 psi/1.03 bar)
  • Valve Seat
  • 304 Stainless Steel Inlet V-Band Flange and Clamp (85-90 in-lbs) (Counterbored for 1-7/8" OD Tubing)
  • 304 Stainless Steel Outlet V-Band Flange and Clamp (85-90 in-lbs) (Counterbored for 1-3/4" OD Tubing)
  • Pair of Banjo Air Fittings (M10 x 1.0, will also accommodate 1/8 NPT)
  • Pressure Port Cap w/ Seal Washer (M10 x 1.0, will also accommodate 1/8 NPT)
  • Instruction Manual w/ Spring Chart
Precision Turbo PW46 46mm Wastegate Spring Chart
PSI BAR Springs
1.5 0.10 Natural
3.0 0.21 Yellow
4.5 0.31 Natural + Yellow
6.0 0.41 Red
7.5 0.52 Natural + Red
9.0 0.62 Green
10.5 0.72 Natural + Green
12.0 0.83 Yellow + Green
13.5 0.93 Natural + Yellow + Green
15.0 1.03 Red + Green
16.5 1.14 Natural + Red + Green
18.0 1.24 Blue
19.5 1.34 Natural + Blue
21.0 1.45 Yellow + Blue
22.5 1.55 Natural + Yellow + Blue
24.0 1.66 Red + Blue
25.5 1.76 Natural + Red + Blue

Returns Policy

--PLEASE NOTE: MOST ORDERS ARE SUBJECT TO RESTOCK OR CANCELATION FEE. PLEASE CALL OUR OFFICE FOR DETAILS AND EXCEPTIONS-- You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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