Sale

CTS Turbo

1.8T Transverse 20V O2 Pipe

$499.99 $449.99 Save $50.00

SKU: CTS-18T-O2PIPE

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The CTS Turbo O2 pipe is engineered as an intermediary component for the VW/Audi 1.8T transverse 20V engine, facilitating the transition from a K03 turbo setup to a larger turbo. It is designed to mate with a T31 style T3 flanged turbine housing (T3 2.5" 4 bolt) and specifically requires the use of a CTS Turbo tubular cast exhaust manifold. This O2 pipe is also compatible with 38mm TiAL or 39mm PTE external wastegates. While the flange connecting to the turbo is 2.5", the piping flares to 3" shortly after, allowing for maximum flow. The product is crafted from aluminum and is a made-to-order part with a production time of 20 business days. Fitment is restricted to Left Hand Drive (LHD) vehicles only. The product is designed to connect your current stock/aftermarket K03 turbo back exhaust to a new big turbo when used in conjunction with the CTS Turbo manifold and a stock placement downpipe. Installation effort is minimized while aiming for maximum flow.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandCTS Turbo
Part NumberCTS-18T-O2PIPE
CategoryAir and Fuel

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

View Full Shipping Policy