As you already have the GTS version on your car you should try just switching out section one and see how you like the GT version. I had if for a month and it was a screamer.....just too loud for me but I also had the headers like you have which may have amplified the sound a tad.
Papa Smurf 2006 Supercharged VT2+ BMW M5
Performance:SC VT2-650 / Alpha N Tune / Sprint Booster V2 / RPI GTS Exhaust / RPI SV1 Oil Cooler / RPI Jet Hot Coated Headers
Handling: KW V3 Coilovers / Dinan Rear Sway Bar / Dinan Front Roll Control / Tires F 255/35/19 R 285/30/19 / 12mm Rogue Engineering Spacers / 19x9/19x10.5, 3 Pc Rennen R8 Concave Wheels (Matte black face with chromed lip)
Exterior:Vorsteiner Rep Hood / Gloss Black Roof Wrap / Matte Azure Blue Metallic Car Wrap / Smoked LED Side Markers, Limo Tint / Custom headlights with Orion V2 rings / Custom Blacked Out LCI Tail lights and Miranda Bruce V 6 Cables / Hartge Rep Urethane Front Lip / AC Schnitzer Roof Spoiler / Matte Black Kidneys Grills / Gloss Black Side Gills / Gloss Black Rear M5 Emblem / Black/White CF Hood &Trunk Roundel / Rear Bumper Mesh, M5 Puddle lights, QTP 2.5 Electric Cutouts
Interior:White LED Interior Lighting / Black/White CF Steering Wheel Roundel / Aluminium Steering Wheel Trim / Handbrake Handle/Pedals /Hardwired Valentine 1, P3Cars BMW E60 Vent Integrated Digital Interface
Programming: Mirror Fold-up / Window Roll-up / Sunroof Closure / Auto S5 at Start up / Euro Launch Control / iDrive Acceptance Delete
Braking: RDSports 6 Piston F 380/35mm and 4 Piston R 380/32mm Big Brake Kit
In Process V3:
Low Compression Engine Builld:
Mahle Custom Pistons
Howerton Engineering - Aquamist HFS-3 Injection System
Custom Fuel System
Custom Alpha N Tune
Custom SC Kit Color Scheme
Future V4 plan coming soon........
Wants:JME Rear Diffuser
MAHA Dyno 570rwhp 400trq 60-130mph 8.29secs
2004 Infiniti G35 APS TT with built motor and fully built transmission. 520rwhp and 550ft trq.
2006 BMW M5 VT2-650 SC 570rwhp and 400trq.
2008 GMC Yukon Denali
Last edited by ACG; 6th July 2012 at 18:15.