Autoblog

BMW has officially thrown its hat in the performance parts game here in the U.S., likely rivaling the products available from aftermarket firms and coming complete with a factory-backed warranty.

Beginning with the 3-series and Z4, BMW is offering a host of components, from brake upgrades to engine kits, that will boost performance and not cause owners to fear a trip to the dealer for service. Some of the parts include carbon fiber and aluminum strut braces, 3.07:1 performance diffs, lowering kits, performance exhausts and a engine package for three-liter models that includes new camshafts and a modified ECU that boosts output to 235 HP and 222 lb.-ft. or torque.

All of the wonderful tidbits can be procured after the jump, and we'd suspect good things to come from the Bimmer boys when they release packages designed for the 335i and the upcoming 135i.

[Source: BMW]

Both General Motors and Ford are making big inroads into the aftermarket world for high-performance parts, and now GM Performance Parts is taking it to the streets-- literally. The company has put together a mobile exhibit of its offerings called the GM Performance Parts Power Shop, which is travelling the country this summer making appearances at various racing and car-oriented events.

One of the stars of the exhibit is a fully-operational display of the GMPP ZZ572 big-block crate engine - 720 hp of off-the-shelf motivation. The drag racing and hot rod-oriented display also features a brand-new drag racing simulator that promises the "full sensory experience of rocketing down the quarter-mile."

The Power Shop debuted this past weekend at "The Year One Experience" at Road Atlanta in Braselton, Georgia.

[Source: GM]