GTHaus HP Touring, Stainless Steel, with 2x83mm Round Split Tips for 2006 BMW 325i(BM0321101) 1115 The APR Intercooler System is

The APR Intercooler System is a massive front mounted upgrade that dramatically reduces intake air temperature (IAT)

When performing free-air calibration

and an OBD flashing option using Femto software and cable

The new shell shape and the vertical slits in the back cushion improve the fit from the headrest to the back

GTHaus HP Touring, Stainless Steel, with 2x83mm Round Split Tips for 2006 BMW 325i(BM0321101) 1115 The APR Intercooler System isHP (Touring Performance) is moderate sounding and the least aggressive system offered in the Meisterschaft line. Still yielding solid performance gains and a subtle yet noticeable increase in exhaust tone over the OEM system. Formulated for a mature crowd, the HP system creates a great tone but remains non intrusive perfect for daily driving. Sound level 4 10 (Moderate) OEM Exhaust Sound level being 2 10 All of our exhaust systems are made from either