IRL G Series Gen2 B58 Downpipe
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Usually ships within 3–5 days and delivers within 10 business days.
Upgrade to using the IRL G Series B58 Downpipe to eliminate backpressure caused by standard catalytic converters. This upgrade allows for quicker spooling and maximum power for your turbos. Additionally, there is a 30% increase in horsepower for tuned B58 with stock turbos. The inclusion of a flex pipe section also helps minimize stress and vibration from the downpipes.
Features
- Smooth bends for maximum airflow without any drone
- Up to 30HP increase on the stock turbos
Professional installation Recommended
It is a violation of Federal and Illinois State laws to use this product in a manner inconsistent with it’s labeling. Our products are "Legal Only For Racing Vehicles Which May Never Be Used, Or Registered or Licensed For Use, Upon A Highway."





