Juanca

iTrader: (5)

I got my car back from JM Lexus today and I'm impressed! Before getting into details I have to thank JC Damion at JM Custom Creations for such a professional, smooth and friendly experience. I'm glad they installed my headers, they've earned my business and even though it's quite a long drive, I'll be going there from now on for my car's needs.

Back to the headers, the first thing that people do after getting the headers installed is filming the car being hammered... and I'll do the same but not on this thread... LOL. Many people ask about how loud the car gets after headers, so if you're wondering this is the thread for you.

These videos were filmed hours ago right after leaving JM Lexus. Temperature outside was ~93F so I had the A/C on and windows were rolled up. My car is a 2012 ISF with 5k miles, JoeZ intake, ISS Forged DES exhaust, and PPE headers.

Crusing at low speed on full auto:

Passing a car on full auto

Slow acceleration from a stop on full auto

Mild acceleration on full auto

Accelerating on full auto

Revving the engine

Quick acceleration on M mode

As other members have reported, after-headers at WOT is quieter than pre-headers. At idle and low rpms the car sounds (and feels) like a big muscle car! It sounds a bit louder than the custom exhaust but with the same note. Performance-wise there is a great improvement, once you push the car it feels like a runaway freight train!!! I'll be posting more videos soon.

Hoovey689

iTrader: (16)

wow this sounds great! and wow so many little tests

CalitriSC

iTrader: (13)

Sounds very nice!

ShadowISF

iTrader: (10)

Sounds good and not that loud.

aWorkOfArt

Love your setup bro!

DCoolBeans

Thanks for the vids...BUT now we gotta get vids of us passing each other

FastPaced

Are you catted or catless? Anyway, sounds good!

tmf2004

iTrader: (15)

all this done at the dealer? Awesome...

sounds incredible... nice sound through the RPM range...

Juanca

iTrader: (5)

No cats at all, the ISS Forged exhaust took care of the second set, now the headers removed the first set.

The dealer installed the headers, ISS Forged did the exhaust, I did the intake.

LiLS

iTrader: (7)

damn sounds sick! can we get a vid of it doing a fly by? i got pretty much ur setup without the headers yet...

CCColtsicehockey

iTrader: (3)

Wow that sounds great. That is the exact setup I plan to eventually switch too.

Juanca you had the ISS Forged QES Exhaust before at one time if I remember correctly? If so how does it compare to the sound of the DES with headers now?

Juanca

iTrader: (5)

What I had on my previous ISF was the muffler/cat delete, not the QES. My current setup compared to the old ISF is deeper at low RPMs but quieter at WOT or higher RPMs. At low RPM it rumbles like a big V8, but once you push it the car screams like a race car, not like Nascar but like those european/australian touring cars.

CCColtsicehockey

iTrader: (3)

Dang I like how loud at WOT I just want rid of the drone when cruising and want more power.

Juanca

iTrader: (5)

No A/C and windows rolled down... man those RPM climb too fast now! I guess I'll have to get used to hit the rev limiter more often.

Meraki Autoworks

iTrader: (8)

man..that things a rocket..