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

Name: CTS Turbo BMW F2X/F3X/G20/G30 230i/330i/430i/530i & xDrive B46 High-Flow CAT
Brand: CTS TURBO
SKU: CTS-EXH-DP-0037-CAT
Price: 1927.99 NZD
Availability: InStock

by CTS TURBO

$1,927.99

Quantity

This product is ready to order. Orders will have an estimated 2-week lead time.

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.

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Shop performance parts in-store or online, then have them fitted and tuned by the same team. No referrals, no second trips.

Dealer-level workshop, MTA assured

Fully equipped to support late-model European vehicles — diagnostics, servicing, and performance builds done right.

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We fine-tune high-performance machines to suit how you actually drive.

Shanijah Taylor

Just wanted to share some love to Harry's euro and their team! Bought parts for my r32 and gti, they never disappoint. Love being part of the euro community in an ever so dominant jdm culture in New Zealand. Looking forward to bringing an rs3 in for tuning :)

Greg Davies

Great to have parts for my Range Rover so readily available in nz. Fast delivery and awesome quality products. Thanks guys!

Nick Ko

I took my BMW to get the downpipe installed. Harry's Euro has done an excellent job. I'm very satisfied with the quality of their work. The staffs are very nice. Highly recommended. 10/10

Sebastian Ramirez

I've been a loyal customer of Harry's Euro since 2017, and I can confidently say Scott and his team are the best in the game. Not only do they consistently offer the best prices, but the service is always top-notch. Scott is honest, transparent, and always takes the time to explain what’s going on with my car. Whether it's routine maintenance, unexpected repairs, or upgrades, I always know my car is in the best hands. Highly recommend to anyone looking for a reliable, expert mechanic!

Andrew Atkinson

Used Harry's Euro for years owning a Mk6R and now a Mk5 R32. Amazing service and delivery! R32 kit arrived today with some extra goodies! Pleasure to deal with the team!

Mark Barber

Hands down the best Euro shop in Auckland. They've looked after 2 builds of mine, and the parts, service and expertise has been top notch.

Marc Graham

Harry's Euros delivered platinum service from start to finish. The quality of the products is excellent, and the install experience was smooth and professional. If you want a lower cost acceleration boost ask Scott about a Pedal Box! Huge difference and very simple to use.

Quinn Ashby

Got some basic servicing and a Stage 2 transmission tune done today to match the ECU tune. The team was really helpful with information, communication via email, fit me in quickly, and offered fair, industry standard pricing for a specialised shop. Highly recommend, and I'll definitely be back!

Hayden Lawrence

Great service. Needed a replacement driver's side mirror glass for our old GTI. Harry's Euro had it in stock for a good price and shipped it next day. Very pleased with the transaction and will happily recommend and use them again.

SladeDaSlide

Been Working with Harry's Euro for almost 3 years now and I can highly recommend any auto-work or performance upgrades to be done by these guys. I've had my previous car and my current done by the team cheers to Scott and the boys for the work 🍻

Press & Media

Harrys Euro in the Media.

New Zealand's automotive publications have documented our work and expertise.

Euro Tuning Explained – Project R Part 3

NZPC · Project Series 31 December 2025

Euro Tuning Explained: How It Really Works — Project R, Part 3

In part 3 of a featured Golf R build series, NZ Performance Car visited the Harrys Euro workshop to explore the realities of Euro tuning. The article highlights our team's expertise, detailing the installation and custom ECU/TCU calibration of the Harrys Euro Stage 2 EA888.3 400 Package.

Read Full Article on NZPC ↗

View All Coverage on NZ Performance Car magazine ↗

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

Harrys Euro

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