Borla 14-18 Silv/Sierra C/B Exh ATAK 1500 5.3L V8 AT/MT 2&4WD Ext Cab(78.7) Crew Cab(69.3) 143.5 WB Drivetrain>Shifters Improves airflow 38%

Improves airflow 38%

added to protect the air springs from sharp edges

every detail drives toward maximum performance

Factory up-pipes are prone to failure due to age and heat cycling causing leaking exhaust

Borla 14-18 Silv/Sierra C/B Exh ATAK 1500 5.3L V8 AT/MT 2&4WD Ext Cab(78.7) Crew Cab(69.3) 143.5 WB Drivetrain>Shifters Improves airflow 38%The Borla(r) 140797 ATAK(r) Cat Back(tm) is tuned for sound and performance specifically for the 5. 3L engine in the Silverado and Sierra 1500. For the owner who is looking for an aggressive and head turning sound, we recommend our ATAK(r) system. It provides a drastic difference in tone and overall volume from the much quieter stock exhaust system while maintaining a drone free driving experience inside the vehicle. This Cat Back(tm) system features