VRSF Catted Downpipe - 2019-2023 BMW M340i, M440i, M240i, X5 & Z4 (B58)
The VRSF catted downpipe replaces the factory catalytic converter on your B58-powered BMW with a high-flow 200-cell race cat, cutting the back pressure that holds back turbo spool and power. It's built from a full 4.5" stainless steel diameter with a CNC-machined 304 stainless steel flange for a smooth transition from turbo to mid-pipe.
The downpipe fits both right-hand-drive and left-hand-drive cars with no modification, and works with either the stock catback or an aftermarket catback exhaust.
Features
- Hand-welded, 4.5" 304 stainless steel construction
- CNC-machined 304 stainless steel flange for a precise turbo-to-mid-pipe transition
- 200-cell high-flow catalytic converter reduces back pressure versus the factory cat
- Fits RHD and LHD models with no modification necessary
- Compatible with the stock catback and all aftermarket catback exhausts
What's Included
- VRSF catted downpipe
Product Specifications
- Vendor: VRSF
- Brushed finish: SKU V02D 10202011, MPN 10202011
- Heat Shield finish: SKU V02D 10202028, MPN 10202028
- Fits: 2019-2023 B58-powered BMW G20 M340i, G22 M440i, F22/G42 M240i, G05 X5 40i, and G29 Z4 M40i, including xDrive
Frequently Asked Questions
What's the difference between the Brushed and Heat Shield versions?
Both use the same catted downpipe; Heat Shield adds an integrated heat shield over the Brushed finish version.
Does this downpipe include a catalytic converter?
Yes, it uses a 200-cell high-flow race cat rather than deleting the catalytic converter entirely.
Will this fit right-hand-drive vehicles?
Yes, VRSF engineers this downpipe to fit both left-hand-drive and right-hand-drive B58 models without modification.
Do I need a tune to see gains?
A supporting tune is recommended to unlock the downpipe's full potential; per VRSF, tuned gains run in the 25 to 30 horsepower range.