Description
Upgrade your BMW B58 to new performance heights with the Active Autowerke Catted Downpipe. Designed specifically for the F/G Chassis models, this performance-enhancing aftermarket part is now available for shipping. With the inclusion of a turbo flange gasket installed by our experts, we've eliminated the hassle of gasket damage during installation.
The Active Autowerke catted downpipe is designed to unlock the untapped potential restricted by the OEM downpipe. The dyno chart showcases a noticeable increase of 18 whp when paired with the stock tune. For even greater performance gains, our stage 1 and stage 2 tunes show impressive whp increases of 53 and 94, respectively, when combined with the catted downpipe and our signature exhaust.
The factory downpipe in the B58 engine is notoriously restrictive, hindering exhaust gas evacuation and turbo spool. To address this, our Signature downpipe features 4.5" diameter stainless steel piping. This not only enhances power but also ensures quicker spool and extreme durability. The piping tapers down to 3.5" with a stainless flex joint before reaching 80mm to meet the OEM exhaust system. Importantly, we maintain the stock diameter of 80mm throughout, avoiding any reduction in performance.
This variant of the Active Autowerke downpipe incorporates a 4.5" high-flow GESI catalytic converter. A key feature is its ability to deliver improved performance without triggering a Check Engine Light (CEL). The GESi G-Sport Ultra High Output Catalytic Converter boasts full 304 stainless steel construction, including the substrate. It is EPA registered and compliant in 49 states, fully OBD2 compliant, and suitable for vehicles from 1996 onwards. Thanks to GESi's proprietary precious metal loading technology, emissions are significantly reduced, ensuring compliance and eliminating most "Check Engine Lights."
Rated for engines producing between 500 and 850 horsepower, the GESi UHO-Series Catalytic Converters offer exceptional flow capacity. By reducing back-pressure, this high-flow catalytic converter allows you to maximize your engine's horsepower without compromising emissions. Say goodbye to Check Engine Lights and failed emissions tests.
Please be aware that these catalytic converters are not legal for use on vehicles registered in the state of California due to specific regulations. However, federal law permits the use of aftermarket parts for emissions control system repair or replacement, as long as emissions are not adversely affected. The GESi catalytic converter meets the EPA standards, even though it does not meet CARB requirements.
Key Features:
- No Check Engine Light (CEL) when using this downpipe
- GESi EPA registered, high-flow, and fully OBD2 compliant
- Casted upper stainless steel V-Band ensures precise fitment
- 4.50" diameter piping allows for maximum power output
- Quicker turbo spool for improved performance
- Rated for 500 to 850 hp applications
- Withstands temperatures up to 1500°F
- Operational efficiency achieved within 9 seconds of startup
- Easy bolt-on installation, no cutting or welding required
- Constructed from TIG welded 304 stainless steel for durability
- Ensures precise fitment and easy installation
- Ultra-high flow 400 cell per square inch catalyst
- EPA compliant for use on OBD2 vehicles (1996 and newer) except in California
- Furnace braised 304 stainless steel substrate for outstanding durability
- GESi proprietary precious metal loading technology reduces emissions significantly
- Ideal for Forced Induction Applications with no loss of horsepower
- Safe for passengers and drivers, reducing harmful emissions and noise
- Covered by a 5-year/50,000-mile warranty on the catalytic converter
- Made in Miami, Florida
By upgrading to the Active Autowerke Signature Catted Downpipe, you'll experience the full potential of your BMW B58. Quicker spool, increased horsepower, and torque will transform your driving experience. Our engineers have meticulously crafted this downpipe using high-quality materials and advanced construction techniques. With its 1.5MM wall thickness and 304 stainless steel composition, you can trust in its robustness and longevity.
Say goodbye to performance limitations and embrace a new era of power and efficiency. Install the Active Autowerke Signature Catted Downpipe today and enjoy the freedom of exhilarating performance with your BMW B58.
