Add dyno-proven power to your Ford Focus RS with this Twisted Steel down-pipe which produced up to +10 horsepower and +14 lbs. x ft. torque max gains as measured on our in-house dyno. 3" mandrel-bent, 304 stainless steel tubing and high flow, 400 CPSI catalytic converter improves exhaust flow to deliver increased horsepower and torque. This direct bolt-on down-pipe requires no cutting or drilling for a hassle-free installation.

Performance Gains: In house dyno testing produced gains of up to +10 horsepower and +14 lbs. x ft. torque.

Includes 3rd O2 bung: This down pipe includes a 3rd O2 bung and plug for either a wide-band O2 gauge or auxiliary instrumentation.

304 Stainless Steel Construction: This down pipe is constructed of 3" mandrel-bent, 304 stainless steel tubing for maximum flow and corrosion resistance.

High-Flow Catalytic Converter: This system utilizes a 400 CPSI (cell per square inch) high flow catalytic converter for maximum flow.

Laser Cut Flanges: Quality laser cut flanges mount directly to OE mounting locations for a leak-free sealing surface.

6" Interlock Flex Pipes: : This unit utilizes heavy duty 6" flex tubes with internal interlock liners.

TIG Welded: 100% TIG welded for race proven strength and durability.

Additional Power: Combine with cat-back (49-33104) for gains of up to +19 horsepower and +25 lbs. x ft. torque.

Race Disclaimer: This is a Race Only product that is to be used solely for competition, it cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. To complete the purchase of this item, aFe POWER competition acknowledgement/liability release form must be filled out and submitted.

aFe POWER exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.