Engine Performance

High Flow-Ram Air Intake System - 330, 328, 325
3 badge points

This system takes full advantage of the ram air effect by literally scooping up additional cool air from the area next to the brake duct. The result is increased horsepower and torque, as well as improved throttle response.

330: +7 hp @ 6600 rpm / +6 lb-ft of torque @ 6600 rpm
328: +7 hp @ 6500 rpm / +6 lb-ft of torque @ 6500 rpm
325: +6 hp @ 6500 rpm / +5 lb-ft of torque @ 6500 rpm

Free Flow Exhaust - 330, 328, 325
3 badge points

100% 304 Stainless Steel, a great sporty exhaust note and superior flow make for the best performing 3 Series. It also has polished stainless steel tips which give your car a tasteful high performance look unlike any other.

330: +6 hp @ 6600 rpm / +5 lb-ft of torque @ 6600 rpm
328: +6 hp @ 6500 rpm / +5 lb-ft of torque @ 6500 rpm
325: +5 hp @ 6500 rpm / +4 lb-ft of torque @ 6500 rpm

High Flow Throttle Body
2 badge points

Dinan carefully bores the stock throttle body for an 8% increase in air flow area. The larger bore further improves the 3 Series ability to breathe for increased power output and more immediate throttle response.

330: +4 hp @ 6500 rpm / +4 lb-ft of torque @ 6500 rpm
325: +4 hp @ 6500 rpm / +3 lb-ft of torque @ 6500 rpm

Suspension and Chassis

Front Strut Tower Brace
2 badge points

Strong yet lightweight CNC machined aluminum front strut tower braces effectively enhance chassis rigidity for improved handling and sharper steering response.

19" Lightweight Forged Wheels
5 badge points - Set of four

Dinan 19x9" front and 19x9.5" rear wheels accommodate the largest tires possible 265/30-19 in the rear and 245/30-19 in the front, increasing grip as well as reducing under steer for razor sharp turn-in. These wheels are the lightest 19" wheel you will ever find at only 20 pounds each.

Suspension Systems
5 badge points

Dinan suspension systems offer the grip that enthusiasts demand while maintaining a comfortable, well-dampened ride. Comprised of fully matched proprietary springs, Koni adjustable shocks/struts, larger antiroll bars and front camber plates, the systems provide comprehensive, pre-tuned suspension solutions that take the guesswork out of superior handling from the 3 Series without compromising the civility expected of a BMW.

Stage 1 Suspension: Performance Spring Set, Adjustable Koni Struts/Shocks, Matching Bump Stops.
Stage 2 Suspension: Add Larger 28mm Front and 15mm Rear Antiroll Bars to Stage 1 Spring and Shock Package.
Stage 3 Suspension: Adds Front Camber Plates to the Stage 2 Spring, Shocks and Antiroll Bars.

Front Camber Plates

For further reduction of understeer and razor sharp turn-in. Dinan Camber Plates can be added to the front suspension and are included in the Stage 3 package. While the cars are now provided from the factory with a significant range of camber adjustment, the Dinan camber plates shift the range of the adjuster by 1/2 degree, providing for a more aggressive negative camber setting that dramatically improve grip in the turns.

Dinan Performance Brakes by Brembo
3 badge points

Dinan and Brembo, the world leader in high performance brake systems, offer ultimate stopping power while maintaining the quiet operation, pedal feel and wear indicator systems that are appropriate for street applications. For the 3 Series, the front brakes feature impressive 4-piston aluminum calipers with 355mm two piece rotors (stock rotors: 330mm). The rear brakes feature 4-piston calipers as well with 345mm two piece rotors (stock rotors: 336mm). The systems also include Goodridge stainless steel brake lines. Kits are available for all four wheels or the front only in your choice of black or red calipers and slotted or drilled rotors.

Accessories

Dinan Pedal Pads
1 badge point

Stylish spun aluminum pedal pads with anti-slip rubber inserts feature the Dinan logo. Available for manual, SMG and Automatic applications.

Signature Floor Mats

Signature floor-mat sets featuring an embroidered Dinan Logo are available for your 3 Series in your choice of carpet and logo colors.

The Dinan Badge

The Dinan Badge cannot be purchased but rather is provided at no charge when your Dinan performance selections total 10 points, making your Dinan enhanced BMW as exclusive as it is exciting to drive.

Dinan Signature Series

Dinan S-330, 328, 325

Includes: High Flow-Ram Air Intake**; Free Flow Exhaust; Front Strut Tower Brace; Dinan Pedals; Dinan Deck-lid Badge and Serial Numbered Dinan S Plaque.

Dinan S-330: 268 hp @6500 rpm / 243 lb-ft of torque @ 2750 rpm
Dinan S-328: 243 hp @6500 rpm / 197 lb-ft of torque @ 6500 rpm
Dinan S-325: 226 hp @6250 rpm / 190 lb-ft of torque @ 6250 rpm

Dinan S1-330, 328, 325

Dinan S1-330: 270 hp @6500 rpm / 243 lb-ft of torque @ 2750 rpm
Dinan S1-328: 243 hp @6500 rpm / 197 lb-ft of torque @ 6500 rpm
Dinan S1-325: 228 hp @6250 rpm / 190 lb-ft of torque @ 6250 rpm

*Not available for 328
**Not available for convertibles