1. Disconnect the battery

2. Safely raise & support vehicle to a comfortable working height. (One jack stand at each corner vehicle.)

3. Spray attaching hardware and base of 02 sensors with WD40 or similar Lubricant. Remove 02 sensors from stock system. (Be careful not to damage or contaminate sensor). Stock gasket will be re-used upon assembly.

4. Remove both connector tubes between stock exhaust manifold and Bassani Modular X pipe. It may be necessary to loosen downstream clamps on the Bassani Modular X pipe.

5. Loosen EGR fitting on drivers side exhaust manifold.

6. Loosen & remove both exhaust manifolds. Stock manifold gaskets, depending on condition, may be re-used. Remove studs from both sides. Use supplied, and/or stock hardware. See note following #10.

7. Label wiring on starter and remove it. (Will be necessary for header installation.)

8. You may also need to remove oil filter to ease installation and tightening on Drivers’ side.

9. IMPORTANT!! It will be necessary to unbolt steering shaft from rack.

10. It will be necessary to lift the engine up enough to slide header tubes in and have access to install supplied header mounts, one side at a time only, will ease installation. Removal of motor mounts is not mandatory. **Anti seize must be applied to all threads (header bolts and studs). It may be necessary to use a combination of header bolts and stock studs & nuts on certain tubes due to clearance between the tube and hardware. IE; stud nut or header bolt. The use of either is the installer’s preference. **

11. Start on passenger side, with tube #1R. Push as far forward as possible to allow clearance for #2R. Once #2R is in position, install gaskets, and header bolts. When this is completed start installation of #3R and #4R tubes following previous procedure. Leave bolts lose, DO NOT TIGHTEN UNTIL COLLECTOR IS INSTALLED.

12. When collector R is ready for right side, place Bassani anti seize jet lube, on slip connectors to ease installation. When collector lines up with the tab on header tube, fasten them together and tighten all header tubes.

13. When all hardware is properly tightened, lower engine, re-install motor mount hardware, and starter O2 sensors in collector. The use of Bassani anti seize Jet Lube is recommended on O2 sensor threads. Do not contaminate O2 sensor bulb with lube.

14. Proceed to driver’s side. Install #1L with gasket installed. Install supplied fasteners with Bassani anti seize jet lube on the threads. DO NOT INSTALL ALL THE WAY, leave semi loose. Install tube #3L then #2L. you will need to experiment with pipes #2L and #3L. #2L will slip between #3L and #1L. Now install #4L, and fasten and screw air fitting to tube #4L. Install collector L. When collector tab lines up with header tab, tighten all hardware, and bolt on EGR, and any smog fittings. Lower engine and re-install motor mount hardware. Reconnect steering shaft using loctite 271 thread locker bolt.

NOTE: Recheck the tightness of all header hardware after one day of operation to ensure correct torque.