BRAND NEW FROM DOUG THOURLEY HEADERS!

This is the exhaust system that you have all been waiting for! The 83406Q has all the performance as our other dual tip exhaust system (83406) but without all the exhaust sound. Here are the sound specs...

Style:           Stock Exhaust            83406 (Current System)       83406Q (New Quiet System)

Idle:             69.1 db                     82 db                                  70 db

@ 65mph:    72.6 db                     77.3 db                                75 db

This is a brand new stainless direct bolt on performance exhaust system for the Smart FORTWO (US version only) . It will provide your car with an extra 6hp and 14 lbs tq while improving gas mileage. The system is constructed of 304 stainless it wil never rust and is an easy do it your self install. Since it is produced by a iconic name like Doug Thorley Headers, you know that this is one of the finest systems produced and features 100% AMERICAN MADE quality. Everything is included for the install including any necessary hardware and detailed instructions. You can cut your car rear Valance with provided templete. Estimated install time is 60 minutes. -All stainless steel construction -Real Performance GAINS! (adds 6Hp and 14 lbs tq) -EASY bolt on installation (only 60 mins) -Made in the USA with almost 50 years experience....which means quality! -Improved tone without the drone of 'other' exhausts, sound off with AUTHORITY! You can cut your car rear Valance with provided templete . Estimated install time is 60 minutes.