Flowmaster Force II Catback Exhaust System (98-03 F150 4.6/5.4L)

Fitment*. Give your 98-03 F150's 4.6 or 5.4 liter engine the power to pull ahead of the pack without getting an overly aggressive exhaust note.

Big Gains. The Force II series gives you all the performance you've come to expect from Flowmaster without a huge increase in exterior and interior volume. You'll enjoy an average of 5-10% more power for greater acceleration and passing power. But don't worry - unlike the American Thunder series, this system won't drown out the sound of your awesome sound system at cruise.

Perfect for Towing. Keep everything quiet on the home front when you're towing with this system. It's the perfect choice for the power gains and for the fact that you won't blow the windows out of your RV.

Catback Dual Exit Design. A catback design means this system is street-legal.* And just so you can choose the unique look of your system, Flowmaster includes two different pairs of pipes to configure the dual rear exit so that your tips are angled towards the corners or in a traditional straight-back alignment.

Quality Construction. The 2.5" aluminized steel pipe used to make this rugged system is mandrel-bent for free-flowing, high-revving performance. Complete with Flowmaster's famous 50 Series Performance chambered muffler, this system is backed by Flowmaster's 3 year warranty so you don't have to worry once installing it on your truck. And as if that weren't enough, the dual 3" polished stainless, logo embossed tips give this system the trademark appearance Flowmaster is known for.

Easy Installation. When choosing an exhaust, you want a simple, straightforward installation. The Flowmaster Force II series contains all the parts you need, including band clamps and hardware, for a simple installation with a minimum of cutting.

Tech Notes:

• Download the installation guide. (Right Click, "Save As").
• *Not guaranteed, please check your local laws.

Fitment Notes:

• *Fits the following:
  • 1998, 2000 - 2003 FORD F-150 V8 5.4 CNG FI
  • 1998 - 2003 FORD F-150 V8 5.4 GAS FI
  • 1998 - 2003 FORD F-150 V8 5.4 BI-FUEL FI
  • 1998 - 2003 FORD F-150 V8 4.6 GAS FI
  • 2001 FORD F-150 HARLEY-DAVIDSON EDITION V8 5.4 GAS FI
  • 1998 FORD F-150 SUPER CAB V8 4.6 GAS FI
  • 1998 FORD F-150 SUPER CAB V8 5.4 BI-FUEL FI