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post #1 of 5 Old 28th October 2016, 01:20 AM Thread Starter
drewTT
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Adding RPI Section 1

I already have the RPI section 2 and mufflers. Stock headers with cats and stock section 1. I would like it a tad louder. I understand that RPI only now sells the GTS section 1 with resonators.

How much louder will the car be if I add the GTS section 1? Is it even worth it?

2008 M5 SMG
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post #2 of 5 Old 28th October 2016, 05:10 AM
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post #3 of 5 Old 28th October 2016, 06:54 AM
ACG
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It will be a little louder but nothing obnoxious.

ESS Supercharged VT2-650
Custom ESS Alpha N Tune
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RPI GTS Exhaust
RPI SV1 Oil Cooler
RPI Jet Hot Coated Headers
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Daily Setup: 3 Pc ADV.1 05 wheels F 20x9 / 255/35/20 R 20x10.5 / 295/30/20 / Michelin PSS Tires
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Track Setup: Apex Arc-8 wheels F 18x9 / Hoosier A6 P245/40ZR-18 R 18x10.5 / Hoosier A6 P315/30ZR-18.
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The journey continues......

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2001 Porsche 996 Twin Turbo, GT3 rear sway bar, Rennline CF front strut bar, Tarrett drop links and toe links, GT3 control arms, BC coilovers, Sharkwerks EVOM tune, RPi exhaust, Sharkwerks sports clutch, HRE 540r wheels, K16 Billet turbos, GTRS Intercoolers: 535rwhp, 550ft lbs trq. SOLD
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post #4 of 5 Old 28th October 2016, 01:06 PM
RichWVU
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I've got the full GTS system on mine, there are a couple spots in the rev range where I'd like it to be a little quieter honestly, but overall I'm extremely happy with the setup.

Comparison vs stock

+ YouTube Video
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Playing around on the back roads, gets more interesting at 1:30.

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2009 Carbon Black M5 SMG, comfort access, soft close doors, active seats, HUD, etc.
RPI GTS Sec 1, 2, & 3, Eventuri intakes, FAMS 93 tune, Hawk 5.0 pads, ECS stainless lines, motul 660 fluid.
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post #5 of 5 Old 28th October 2016, 07:00 PM Thread Starter
drewTT
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I guess I am trying to figure out if it's worth the extra $900 for GTS section 1. Would be cool to see a vid of someone that had RPI section 2 and 3 and then adding the GTS section 1 but I am pretty sure most people either get the full system or mufflers only.

2008 M5 SMG

Last edited by drewTT; 28th October 2016 at 07:05 PM.
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