Home » CTS Turbo - BMW F2X/F3X/G20/G30 230i/330i/430i/530i & xDrive B46 High-Flow CAT

CTS Turbo - BMW F2X/F3X/G20/G30 230i/330i/430i/530i & xDrive B46 High-Flow CAT

  • Vendor CTS Turbo
  • Part # EXH-DP-0037-CAT
$399.99
$429.99 Sale $399.99
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Description Fitment Guide

The CTS Turbo High-Flow Cat for the BMW B46 North American Market vehicles is made to maximize exhaust flow for the highest power gains. Do not compromise performance and sound with factory parts – unleash your BMW’s potential!

Designed using the latest in CAD technology; this part is made to fit perfectly in place of your factory downpipe. Manufactured from T304 stainless steel, hand TIG welded and back-purged to ensure years of reliable performance.

Product Details:

  • Precisely designed and tested on a real car in the real world
  • Fitment specifically for B46 engines (US-spec vehicles)
  • T304 stainless steel, TIG welded back-purged construction
  • Replaces restrictive factory downpipe with high-flow 200 cell catalytic converter
  • Great power upgrade with uncompromising performance
  • Incredible sporty exhaust sound, subtle when cruising
  • No drone with factory exhaust

The use of Bootmod3 stage 2 software is strongly recommended to avoid the CEL from coming on.

Fitment for B46 SULEV engines only, with flange connection to exhaust. ALWAYS check your vehicle before placing your order:

  • 2016-2020 F20/F22 BMW 220i, 230i including xDrive (B46 2.0T engine)
  • 2016-2020 F30/F31 BMW 320i, 330e, 330i including xDrive (B46 2.0T Engine)
  • 2016-2020 F32/F33/F36 BMW 420i, 430i including xDrive Models (B46 2.0T Engine)
  • 2016 – 2020 G30 BMW 530i, 530e including xDrive Models (B46 2.0T Engine)
  • 2016-2020 G11 BMW 730i, 740e including xDrive Models (B46 2.0T Engine)
  • 2019-2023 G20 BMW 320i, 330i including xDrive (B46 2.0T Engine)
  • 2019+ G29 BMW Z4 30i (B46 2.0T Engine)
  • 2020+ A91 Toyota Supra 2.0 (B46 2.0T Engine)

Catalytic converters damaged by “crackle tune” are not covered under warranty.

Stage 2 software is required to avoid check engine light.

Only fits cars without GPF/OPF, check the downpipe connection on your vehicle before order.

Customer Reviews

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Let customers speak for us

from 17 reviews
Forge intake pipe

Some slight modifications to the car and the cold air heat shield was needed but otherwise it fit great. Can really hear her breath now!

Shea Chris
Forge Motorsport - Silicone Turbo Inlet Hose - TT Mk1 225
Very nice!

Love my new side markers - very clean looking and unique in how they flash when turning left or right. The only suggestion I’d make is provide instructions for both installing them and for being very careful with the wire once you disconnect the old light housing Left side went in ok, but I lost the right side into the fender black hole which required me to remove the tire and unscrew most of the lining so I could find the wire!

Jon W.
German Auto Stuff - Clear Side Markers - TT Mk1 1999-2006 - Sequential Amber LED
Amazing

Was a little late, but everything was perfect!!!

MAX SANCHEZ
Forge Motorsport - Valve Service Kit - FMCL007P 007 007P 007PA
Much better braking

I was considering just upgrading the brakes altogether, but I decided to try red stuff brake pads first. They are exactly what I needed.

Taylor Bennett
EBC - Redstuff Ceramic Low Dust Brake Pads - Rear - TT Mk1
Perfect!

Very pleased with the replacement floor mats. Excellent quality. Perfect fit.

John Montgomery
Genuine Audi - Carpeted Floor Mats - Front - Black - TT Mk1

Beautiful and amazing fuel pump upgrade for my MK1 Audi TT

L.C.
DeatschWerks - High-Flow Fuel Pump - TT quattro Mk1 / Mk2
Works great

I’m using these in my 8J TT with some Defi gauges. It requires some disassembly of the stock pods to use with these pod adapters, which was the most complicated part of install. Works great. The pod adapters push the gauges out a little further than the photos represent but I found it acceptable.

J
OSIR Design - O-Pod Mono TTMK2 - TT / TTS / TT RS Mk2
Works great

Have had one of these on my 8J TT RS for a few years now. Works great. Installation takes just a few minutes. I only needed to use one of the three available tap ports; I used blue loctite to help ensure the plugs don’t back out (or fall in).

J
Osir Design - O-TAP B - 1.4 / 2.5 Engines
I like them!

This product is fantastic! The smoked side markers look incredible, and the sequential leds are a huge upgrade. Installation was a breeze truly plug-and-play and I had them on in minutes without any hassle. They really modernize the car's look. Highly recommend!

Dan C.
German Auto Stuff - Smoked Side Markers - TT Mk1 1999-2006 - Sequential Amber LED
Perfect Upgrade for My TT Mk1

Totally transformed my 2005 TT Mk1! This German Auto Stuff carbon spoiler looks incredible and was a perfect fit. The quality is outstanding. Installation was quick and easy. My car looks sharp! Highly recommend for any Mk1 owner looking for a premium upgrade!

Dan C.
German Auto Stuff - Carbon Fiber Spoiler - TT Mk1 1999-2006 - Gloss Black
TT parts

Part worked perfectly and arrived on time. I spoke with them before ordering and they took the time to ensure I was receiving the correct part. I will definitely use them again for parts
John M

John Melnick
Forge Motorsport - Silicone Cam Cover Breather Hose 210 - TT Mk1 225

Fit perfectly

Josh
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