Adding an AFE Intake and gutting the muffler made the M3 faster and sound killer!
Upgrading the M3's intake and exhaust were perfect modifications for Chelsey. The AFE Stage 2 intake added around +15HP and the butt dyno agrees. Once the exhaust was modified, the N/A V8 really came to life!
Join throtl for FREE: https://www.throtl.com/enthusiast
Help us grow to 50k subs: http://bit.ly/2eSg8BJ
Check out New Performance Parts at: https://www.thehuntquarters.com
Buy some throtl merch: http://shop.throtl.com