Agency Power 08-13 BMW 135i Rear Axle Back Exhaust System w/Titanium Tips AP-135I-170 HEST HKS logo is printed on

HKS logo is printed on a storing bag

The fully opening pop-top lid simplifies loading large items from the top and grants easy access to your rooftop tent

This isn't just data logging—this is actionable intelligence

SL 2010 - 2013 GMC Sierra 1500 XFE 2011 - 2013 GMC Sierra 2500 HD Denali 2008 - 2013 GMC Sierra 2500 HD SLT

The 1/4" thick truss top incorporates a unique design to strengthen both the axle and incorporate the link brackets for ease of installation and added strength

Agency Power 08-13 BMW 135i Rear Axle Back Exhaust System w/Titanium Tips AP-135I-170 HEST HKS logo is printed onAP Axle Back Exhausts Exhaust System Kit If you are looking to step up the sound, performance, and look of your BMW 135i turbo, then adding the Agency Power axle back muffler exhaust is the answer. The all stainless steel muffler features TIG welding, a polished finished, and dual titanium tips with that MUST HAVE look sticking out of your rear bumper. The axle back muffler fits to the stock midpipe to not only save weight, but improve performance.