Downpipes // BMW F13 650i @ardesignco X-PH Hi-Flo Downpipes We love it when our clients come to us and request to make their car sound as sexy as it looks. AR Design offers a Downpipe that is intoxicating and exotic to the ears, and adds a significant power and virtually eliminate turbo lag, making the twin-turbo N63 engine even more responsive! Typical gains with tuning in the 30bhp range, Offering 100% hand crafted in the USA from premium 304 Stainless Steel - flanges and O2 bungs included! Water-jet cut 304 Stainless cat-back flanges, and CNC'd 304 Stainless V-Band flanges. 100% TIG welded, argon back-purged. Grade 10.9 Metric Hardware (145,000PSI tensile strength, C32-C39 Rockwell, Zinc Plated), and Nord-Lock positive locking re-usable washers are included. We’re an authorized AR.Design dealer! Speak to a Solo-Certified Advisor to learn more about their bespoke products! We Sell Speed! //solo@norcross 404-620-3074 //solo@johnscreek 470-243-2559 //solo@downtownatl 404-228-8798 /...