Extreme Power House

AA catted downpipe added to my 540 is amazing. I highly recommend this downpipe for anyone looking to go stage 2!

Quick shipping and quality product good customer service follow up

The team over at XPH fulfilled both items in my order (AA single midpipe and SST Valve controller) within 24 hours and both were at my door within a week. A+ service, ship times and pricing as always.

Super happy

Fits perfectly. Sounds awesome. Been waiting 7 months since pre-ordered. Sevice reps. kept me updated on delays from S&B. They were easy to work with and apologized for the delays. Thanks.