Flowmaster 817512 Installation

409S Stainless Steel
®
PACKING LIST
Qty. Description
1 Right Muffler Assembly
1 Left Muffler Assembly
Removal:
1) Raise the vehicle up on a hoist or rack to working height and support securely with jack stands.
2) If your vehicle has an automatic transmission, you will need to cut the right side over-axle pipe
about 4" away from the factory band clamp toward the muffler. This is not necessary for the left side
or standard transmission vehicles.
3) Remove all four factory hangers out of the rubber mounts located at the rear of the vehicle
using a screwdriver or a pry bar. A spray type lubricant may be used to ease separation of hangers.
4) Unbolt the four bolts on the two mounting straps that hold the sway bar using 15mm and
18mm sockets or wrenches. Pull say bar down and allow it to hang freely.
5) Loosen the band clamps at the rear of the factory H-pipe and support with a stand.
6) Remove the four nuts at the front cat pipes to the factory H-pipe connection using a 15mm
socket or wrench and slide the flanges off the studs.
7) Unbolt the two spring loaded hangers located toward the rear of the H-pipe assembly.
Remove the H-pipe assembly by tilting the front down, then slide the H-pipe forward off the factory
muffler connections and set aside.
8) Remove both mufflers by pulling the rear of the mufflers down and out of the vehicle. Some
twisting may be necessary to get the inlet pipes over the axle.
Installation:
1) Before installing anything, prep the clamps supplied in the hardware kit by removing the nuts,
and applying a thick lubricant such as white grease or anti-seize to the threads.
Pg 1 of 2
Part#
852563-237
852563-238
Technical Support (800) 544-4761
Installation diagram for:
SYSTEM #817512
2005-2008 CHEVROLET CORVETTE C6
W/QUAD TIPS · *DOES NOT FIT Z06*
10/04/11