2013 Audi S4 Base Performance Parts

2 Wire electrical bulkhead to pass two 12ga wires through a surface. Thread is 3/8" NPT. Includes: Main body Gland Sealing nut Lower Nut

Adjustable High Flow Fuel Pressure Regulator with 1 to 1 boost reference

The Precision Raceworks AN6 Male Check Valve is the ultimate solution to ensure optimal fuel system performance. Designed to prevent fuel from draining from your lines, this check valve is the perfect addition to your high-performance fuel system. Constructed from premium billet aluminum, featuring...

Transform the rear of your Audi B9 A4 or S4 with this GTX Carbon Fiber Trunk Spoiler and be sure to turn heads along the road. Installation is a breeze only requiring 3M double sided tape and is 100% reversible if you choose to remove the spoiler. This spoiler is...

Are you looking to improve the head on and side profile appearance of your Audi B9 A4/A5 S4/S5? RW Carbon has you covered with these beautifully constructed carbon fiber mirror replacements. Coming with or without a lane assist option, these are not the typical mirror covers, but...

Are you looking to upgrade rear end of your Audi B9 A4 or S4? RW Carbon has just what you want with this carbon fiber trunk spoiler. Within minutes it will completely transform your Audi A4 or S4. Installation is a breeze, only requiring...

Tired of the front end of your Audi B9 A4 or S4 looking stock and boring? RW Carbon has your solution with this carbon fiber front lip spoiler. There are no modifications required to get it installed and only requires some 3M tape and self-tapping screws. This...

Audi B8 / B8.5 S4 & S5 Valved Exhaust System T304 Stainless Steel, High-Pitch X-Pipe, Vacuum Valve Control Overview Transform your supercharged V6 into a true auditory experience.Our Valvetronic Designs Valved Exhaust System for the Audi B8 and B8.5 S4/S5 delivers a unique, high-pitch...

X Gold provides all the benefits of Street Series, with a premium non-directional cross drilled and slotted design, plus an attractive gold finish on the rotor hub.This Part Fits: Year Make Model Submodel 2014-2015,2018 Audi A6 Premium 2014-2015,2018 Audi A6 Premium Plus 2018 Audi...

Built on the foundations of DBA's T2 slot, the T3 slot design features additional, precise, CNC machined tri-symmetrical slots, resulting in an even quieter, more responsive and smoother brake pedal feel The T3 slot increases the number of exit points for brake pad friction...

The T2 slot design features precise CNC machined bi-symmetrical slots, resulting in a quieter, more responsive and smoother brake pedal feel. The T2 slot increases the number of exit points, allowing friction dust and gases to escape and enhancing the pad bite. DBA's revolutionary...

The T2 slot design features precise CNC machined bi-symmetrical slots, resulting in a quieter, more responsive and smoother brake pedal feel. The T2 slot increases the number of exit points, allowing friction dust and gases to escape and enhancing the pad bite. DBA's revolutionary...

No matter what you drive, or how you drive it controlled stopping power, in all conditions is necessary. Brembo brake kits come with everything you need. Prime low-Met pads ensure comfort and quality, with a specific focus on performance, thanks to patented solutions, full...

No matter what you drive, or how you drive it controlled stopping power, in all conditions is necessary. Brembo brake kits come with everything you need. Prime Ceramic Brake Pads minimize noise and vibration for maximum driving comfort. Also, reduced friction wear and low...

Adjust front camber and caster +-1.5deg on the Audi B8 and C7 platforms with these forged aluminum adjustable control arms from SPC. OE style booted ball joints and bonded rubber bushings maintain factory ride, handling and noise, vibration, & harshness (NVH) parameters. Audi's unique...