IRL LLC
IRL F97 F98 X3M X4M Downpipes
IRL F97 F98 X3M X4M Downpipes
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Upgrade your vehicle's performance with IRL LLC downpipes, which alleviate back pressure from stock catalytic converters. By switching to our downpipes, your turbos will spool faster and reach peak power. A tuned S58 can see a 30HP boost with stock turbos. The flex pipe section reduces strain and vibrations caused by the downpipes. Other features include smooth bends for optimal airflow and a recommended professional installation. Resonated , Catless, 200-cel downpipes will cause a Check Engine Light.
Professional installation Recommended
200 cel Heatshiled coming May 2026
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."
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