Choose GSP for Your Hub Assembly, Axle Shaft, and Loaded Strut Needs

Since 2004, GSP has been a trailblazer in the North American axle industry. With an extensive range of applications, a wide SKU count, and a track record of introducing the latest applications ahead of the competition, GSP is the go-to choice. In 2010, GSP expanded into hub assemblies and swiftly earned the trust of the industry, becoming the most reliable brand.

When it comes to your hub assembly, axle shaft, and loaded strut needs, you can have full confidence in GSP's expertise.

Key Features:

• Superior quality based on long term development through ISO/TS16949 certifications
• The strictest quality control standards to ensure the best end result to the customer
• Constructed of high-quality materials for a superior product at a low price
• Designed for application-specific needs
• Consistently driving to offer the broadest catalog

True performance, durability, and attractive weight advantages with innovative features places the Active Autowerke E9X BMW M3 exhaust in a class of its own. This system is constructed from 100% 304-stainless steel and features adjustable Active Autowerke double walled tips, making it ideal both for 2-door and 4-door models (also allows for cleaner fitment with diffusers).

This system uses factory style flanges making it a complete bolt on system that requires no cutting or welding. The system is a straight-through design providing substantial improvements to gas flow over the factory exhaust.

The sound is unobtrusive, with a rich mellow tone and delivers a solid 5+hp, with key gains in the mid-range. In addition, the Active Autowerke E9X M3 Signature Exhaust system features large 3" piping for maximum exhaust flow while maintaining enough back-pressure to result in horsepower increases across the entire RPM range.

The factory E9X M3 muffler features a Noise Canceling Chamber inside the muffler and Active Autowerke has retained this feature by adding two custom Active Autowerke noise canceling chambers (NCC)on each muffler to reduce/minimize the drone (the 'booming' noise some muffler emit at cruising speeds, ~3500 rpm).

The Active Autowerke E9X M3 Signature Exhaust System provides increase in horsepower, great sound and appearance making it a must for the true M3 enthusiasts.


Features:

• Large 3-inch mandrel bent piping for maximum flow 
• Durable, 100% 304 brushed stainless steel 
• Double-walled 76mm Signature stainless tips
• Revolutionary NCC -Noise Cancelling Chamber 
• Adjustable Tips with Embossed Active Autowerke Logo
• Improved power & torque throughout entire RPM band 
• Gains of 5+ HP over stock configuration; Additional HP with our programmed software 
• BMW factory style hardware makes a truly easy installation with no need for cutting or re-welding 
• Weighs 40 Lbs vs. the factory of 55.1 Lbs.
• Complete illustrated instruction manual
• Two year warranty

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs: 

2008+ E82 BMW 128i 135i 135is 
2006-2011 E90 BMW 325i 328i 330i 335d 335i - Sedan 
2006-2012 E91 BMW 328i - Wagon 
2007-2013 E92 BMW 328i 335i 335is - Coupe 
2007-2013 E93 BMW 328i 335i M3 - Convertible 
2013+ E84 BMW X1 sDrive28i 
2009+ Z4 BMW Z4 sDrive28i Z4 sDrive30i Z4 sDrive35i Z4 sDrive35is