Need a custom fuel cell? Aero Tec Labs (ATL) probably has one for you. If not, they'll make one. According to the company, ATL F1 cells have been used by every F1 driving champion and every F1 constructor's champion since 1980. Pictured is ATL's 17-gallon Super "Well Cell" for the E36 M3 ($1,700), which fits directly inside the spare tire well and features guide vanes that provide maximum fuel scavenging around turns. ATL also carries bolt-in cells for Ferraris and Porsches and will build custom fuel cells to your exact specifications.
Aero Tec Laboratories
800.526.5330
www.atlfuelcells.com
If you're a BMW owner and you don't drive an M model, you don't have a limited-slip diff, which means you're basically driving with one wheel. Turner Motorsport has a solution: LSDs available for E46 3 Series and the Z4. Machined from billet heat-treated 4340 chrome-moly steel, it is completely adjustable by varying the amount of pre-load and ramp angles. It's also completely rebuildable, all parts are replaceable, and it fits into the factory differential housing and uses the factory bearings. $2,275
Turner Motorsport
978.388.7769
www.turnermotorsport.com
Give your Mercedes-Benz SL-Class the exotic SLR look with a front-end conversion from Performance Products. This kit includes a fiberglass-reinforced carbon-fiber hood, grille and signature three-pointed star. Please note, these body components must be painted and may require professional installation for optimal fit and finish. $3,995
Performance Products
800.243.1220
www.performanceproducts.com
Gagliano's Image 10 finish system was created to pamper your car's paint, whether you compete regularly in highbrow concours events or just like to keep her clean and shiny. The basic kit ($139) includes pH-balanced surface wash, surface cleanser to extract environmental contaminants, finish cream that reportedly imparts a long-lasting finish and superior brilliance compared to traditional pastes and liquids, and "Instant Image" touch-up spray. The kit also includes foam applicators, microfiber towels and an insulated nylon carrying bag. Go online and check the testimonials from winners at events like Pebble Beach.
Gagliano's Image 10
888.424.5426
www.image10finish.com
If you're truly serious about high performance, then a stand-alone engine management is for you. Sias Tuning offers a plug-and-play Electromotive TEC3R EMS package for hardcore Bimmer enthusiasts. Sias already did the work for you: The management unit comes with built-in igniters for '92-99 325s, 328s and M3s for a true, custom tune no matter if you run a turbo, supercharger or just a high-strung, naturally-aspirated powerplant. $2,750
Sias Tuning
650.704.0771
www.siastuning.com
Give your Cooper S a safe power boost with a CravenSpeed supercharger pulley. Its solid 303 stainless construction and self-centering design ensure a great fit and great performance gains. The 15-percent reduction in size spins your blower faster, giving you respectable gains throughout the powerband without shortening the life of your supercharger. Available in powdercoated red, black oxide or raw stainless steel finishes to meet your custom needs, and it uses your existing serpentine belt. $109
CravenSpeed
888.493.7262
www.cravenspeed.com
In AWE Tuning has an exhaust available for your spanking-new Porsche Cayman S or 2005 (and later) Boxster S. Precision crafted in-house at AWE's facilities, this unit is built from T304 stainless steel and produced a dyno-verified 11 hp and 9 lb-ft improvement (crank-corrected) in power delivery. Each TIG weld is hand-finished internally, and all flange openings are size-matched to their respective ports for the smoothest exhaust flow possible. The system re-uses the O.E. tips for a stealthy look, or for a few extra bones you can get a pair of AWE stainless tips (pictured). $1,695
AWE Tuning
888.565.2257
www.awe-tuning.com