New Product: Heffner Ford GT Cat Back Exhaust System


GARY J

GT Owner
Apr 21, 2006
39
Heffner Ford GT Cat Back Exhaust System:
- Three Inch High Flow Cat Back Exhaust System
- Constructed Completely Out Of Polished T-304 Stainless Steel
- 2 1/4" Balance Tube
- High Strength Mounting Brackets Mount Directly In Factory Location
- 3/8" Thick CNC Machined Flanges
- Double Wall Stainless Steel Exhaust Tips
- Reduces Weight By 50 Pounds Over Stock Muffler
- Improved Sound Quality Throughout The Entire RPM Range
- Improved Power And Torque Throughout The Entire RPM Range
- Reduces Underhood Temperature By As Much As 20 Degrees
- Fully TIG Welded

Click here for info, larger pics, and sound clips.

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[IMG]http://www.heffnersperformance.com/images/fordgt/catbackwebready/4.jpg[/IMG]
 

dbk

Admin
Staff member
Le Mans 2010 Supporter
Jul 30, 2005
15,260
Metro Detroit
That's a turbo car right? So the exhaust will sound moderately different on a blower car...

Tips looks excellent and a unique design.
 
Mar 15, 2006
767
Looks very nice!
 

FlorIdaho Chris

Yeah, I've got one.
Mark IV Lifetime
Le Mans 2010 Supporter
Beautiful tips. Look like the same tips that are on my GT500 Corsa cat back.

How much uninstalled?
 

Heffner Performance

*Supporting Vendor*
Supporting Vendor
Feb 22, 2006
370
Dave, yes that is a turbo car. I'll get some clips of one on a blower car shortly and post them here.

The system with hardware and removable baffles sells for 2299.00

Thanks for the compliments. Not to pat ourselves on the back but yes, we really like the tips as well.
 

Ripper 02

Permanent Vacation
Aug 16, 2006
229
Texas
Awesome !!!!!!!!!!!!!!!


Damn you Gary !!!!

You trying to make me spend more money ??? :lol :rofl :rofl
 

AZGT

GT Owner
Mark IV Lifetime
Dec 20, 2005
1,354
Scottsdale, AZ.
Heffner Performance said:
Dave, yes that is a turbo car. I'll get some clips of one on a blower car shortly and post them here.

The system with hardware and removable baffles sells for 2299.00

Thanks for the compliments. Not to pat ourselves on the back but yes, we really like the tips as well.

Removealbe baffles? Can change for sound changes or less noise, or an all or none deal?
 

ETW

GT Owner
Jan 16, 2006
172
Looks great! Theres no way of welding those tips to an Accufab is there?
 

HeritageBruce

GT Owner
Mark II Lifetime
Mar 13, 2006
748
Southern CA
Wonder if these larger tips get too close to the plastic shroud in the bumper to melt the plastic? Any thoughts anyone? Actually, someone needs to make a more heat resistant shroud for the tips.
 

BlackICE

GT Owner
Nov 2, 2005
1,416
SF Bay Area in California
The tips look great! I assume that the tips are doubles walled near the end that would help them stay much cooler than the exterior single wall tip. Also they may have a chance on not blueing from the heat.

Where are the baffles in the pipe? Are they easy to remove and install?

BlackICE
 

ViperJoe

GT Owner
Mark II Lifetime
Aug 17, 2006
1,305
Washington Crossing, PA
Dyno data?

Is dyno data available? Before and after runs on an otherwise stock GT.
 

FlorIdaho Chris

Yeah, I've got one.
Mark IV Lifetime
Le Mans 2010 Supporter
HeritageBruce said:
Wonder if these larger tips get too close to the plastic shroud in the bumper to melt the plastic? Any thoughts anyone? Actually, someone needs to make a more heat resistant shroud for the tips.

The tips are about the same distance from the plastic shroud as the Ford Racing Borla muffler tips which have not been an issue with my car. I'd expect with the exhaust pipes exiting about an inch farther back than stock or Borla this would help things as well.

How easy are the sound baffles to install/uninstall?

Looks like I'm going to be sending some coin to Sarasota...
 

Heffner Performance

*Supporting Vendor*
Supporting Vendor
Feb 22, 2006
370
Hi guys,

In order to remove or install the baffles you would need to unbolt the exhaust system at the flange where it meets with the factory exhaust or aftermarket headers. There is only one set of baffles so yes, it is an all or none type of thing.

This system will fit the FRPP headers as well.

Like Chris said, the tips are the same diameter as the FRPP tips and are double wall so the outer wall of the tips will stay much cooler than single wall tips. Like Black Ice said, the double wall tips are also much more resistant to discoloration that any of the single wall tips.

We will have some before and after dyno data in a couple of weeks when the first full production run is complete.
 

BlackICE

GT Owner
Nov 2, 2005
1,416
SF Bay Area in California
How much of a difference in sound and loudness of the exhaust with and without the baffles. Is the demo sound clip with, or without baffles?

When you tune a car with or without baffles do you need to retune if you change the configuration? How much do the baffles affect power output?

BlackICE
 

Heffner Performance

*Supporting Vendor*
Supporting Vendor
Feb 22, 2006
370
So far we have only tested this on a turbo car and there was no power difference between baffles and no baffles and there will be no change in tuning required between the two. The video clip is with no baffles. The baffles don't make a dramatic difference but it is noticeable.
 

dbk

Admin
Staff member
Le Mans 2010 Supporter
Jul 30, 2005
15,260
Metro Detroit
We need to hear this combo. Someone quick, buy it...

Heffner Performance said:
This system will fit the FRPP headers as well.