Polk Audio Speakers

1. Polk Audio has just introduced its improved db Series of automotive and marine aftermarket speakers. The db Series consists of six full-range round coaxial models, three oval coaxials, one plate-style speaker, two component systems, and a single component tweeter. The db Series offers features and performance well beyond what is normally offered at the same price, along with an easy drop-in fit. For more information and the location of a Polk retailer or distributor in your area, visit www.polkaudio.com, or call (800) 377-7655.

2. MBRP Inc. has made a name with its performance diesel exhaust systems, but they now also offer a line of performance exhaust systems for gasoline-powered Ford, Dodge, Chevy/GMC, and Toyota light trucks. The majority of the sport-truck line is offered in high-quality, mirror-finished T304 stainless steel. T304 stainless is an aircraft-quality, 16-gauge, surgical-grade stainless steel, and is made of high chromium and nickel content. This durability means the material will never rust, and it also carries a lifetime warranty. For more information, visit www.mbrp.com, or call 888-636-7223.

3. StreetWires Zero Noise 9 interconnect line features the best noise rejection capabilities and the cleanest signal transfer of any interconnect StreetWires has released yet. Its quad conductor design delivers improved accuracy and detail and has Rhodium plated connectors for greater durability than gold, which results in a construction similar to high-end home audio interconnects. For more information on StreetWires, visit www.streetwires.com, or call (877) 787-3381.

4. Gale Banks Engineering's new Banks Bullet is a budget-priced, entry-level diesel tuner/boost gauge for '01-'04 Duramax LB7, '03-'07 Cummins, and '03-'07 Power Stroke pickup models. The 2-inch gauge-mount device has Stock, Tow, and Sport power levels, which are changeable at the push of a button, and add up to 60 hp and 100 lb-ft at the wheels. An all-in-one tuner and control panel, it displays boost, percent of fuel increase, self-diagnostics and power level. An optional thermocouple kit adds EGT-reading capability and provides temperature-limiting safety, while automatically limiting fuel delivery based on the user-selected maximum EGT. For more information, visit www.BanksPower.com, or call (866) 602-4312.

5. Eibach Springs introduces its Pro-Truck systems for '04-'07 2WD F-150s. Eibach's racing experience helped them to design progressive-rate springs that not only lower your truck, but also improve the steering response and the handling performance. The system will give your truck a 2/4 drop with new springs, shackles, hangers, and bumpstops, and comes with Eibach's Million-Mile Warranty. MSRP is $872, for more information, you can visit their website at www.eibach.com, or call (800) 222-8811.

6. NCD Customs now offers a great alternative to the stock Nissan Titan upper control arms that traditionally make contact with the coil bucket when lift kits are installed. The NCD upper control arms are designed as a simple bolt-on solution that will fit all '04-'07 Nissan Titan models. The NCD arms improve off-road handling, provide increased droop and allow for longer shocks to gain clearance for larger tire and wheel combinations. Or, they can be used with almost any lift kit on the market that would normally retain the stock arms. All arms feature 3/4-inch FK Heim joints, a 1-inch heavy-duty ball joint with replaceable Teflon inserts and are fully TIG-welded and powdercoated. For more information, visit www.NCDcustoms.com, or contact NCD at (866) 983-4623.