AMS Alpha Performance R35 GTR 90mm Race Midpipe (ALP.07.05.0003) VIS so you would have to

so you would have to purchase just the tray and source your own local battery

including pulse maintenance for best performance and service life (arguably the most caring mode for a battery connected for a long time - a CTEK patented system)

2006-2013 E90

and ensure ample lubrication even at high engine temperatures and RPMs

AMS Alpha Performance R35 GTR 90mm Race Midpipe (ALP.07.05.0003) VIS so you would have toThe Alpha R35 GTR 90mm Race Midpipe features a large 90mm primary pipe that reduces turbulence and back pressure for increased horsepower and improved turbo response. Built from premium stainless steel and hand TIG welded, it offers unrivaled durability and fitment, with options for exit size and a muffler or straight through design, ensuring long lasting performance for your GTR. Vehicle Fitment: 2009+ Nissan R35 GT R (VR38DETT) Features: Large 90mm