APR Catback Exhaust System Center Muffler Delete | C7 S6 · S7 · RS7 irs Helmholtz Resonator for frequency (drone)

Helmholtz Resonator for frequency (drone) cancellation

This kit uses the Integrated Engineering billet recirculating catch can

This is a direct replacement part that requires no modifications

or 93 octane

Includes all new extended hardware and two new intake manifold gaskets

APR Catback Exhaust System Center Muffler Delete | C7 S6 · S7 · RS7 irs Helmholtz Resonator for frequency (drone)The APR Catback Exhaust System is available with and without a center muffler. This upgrade is customers who have purchased this system and would like to replace the center muffler with our straight pipe assembly. Features: T304 stainless steel construction Argon back purged TIG welding throughout Dual 2. 75" mandrel bent brushed tubing Rugged and precise mounting brackets Direct fit to the APR Catback Exhaust System Low profile design, suitable for