One of the most restrictive parts of your cars exhaust is the downpipes. As restrictions get more strict, catalytic converters get larger, sound is sacrificed. At Valvetronic Designs, sound comes first so we have designed this downpipe to be the highest flowing solution on the market. Crafted of T304 stainless steel this downpipe eliminates the stock restrictive catalytic converter. Take your sound to the next level with a downpipe from our team here in Chambersburg PA
For those who want the gains but remain emissions compliant we are offering a 200 cell race cat option. Imported from Germany, our high flow race cats flow 87% of a straight pipe and give you incredible sound gains while allowing you to remain emissions compliant.
Features of this downpipe
- Fits OEM exhaust systems and Valvetronic Designs Exhaust systems
- CAD and CFD designed for maximum flow and sound gains
- Crafted of the highest quality T304 stainless steel polished to perfection
- TIG-welded for maximum strength and superior durability
- OEM o2 bung locations for easy install
This item fits the following BMWs with the N55 engine:
Emissions Non-Compliance. Removing, disabling, or altering emissions equipment on a pollution-controlled road vehicle is illegal. Installing devices or software that trick, disable, or modify emissions controls and monitors on a pollution-controlled road vehicle is also illegal. This product is sold only for racing, competition, track, hobby, or other off-road use. Its use is prohibited in any motor vehicle that is subject to emissions inspection or control. Legal in California only for racing vehicles that may never be used, or registered or licensed for use, upon a highway.