New Exhaust System


analogdesigner

GT Owner
Mark IV Lifetime
Nov 15, 2005
950
San Clemente, CA USA
4 to1

centerpunch said:
I don't think that bulge in the Ford rear exit system http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=8865 is a catalyst, I think it's just a collector for the 4 to 1 transition.....
That's correct!
 

AZGT

GT Owner
Mark IV Lifetime
Dec 20, 2005
1,354
Scottsdale, AZ.
Excuse me if I am a little dumb on this one, but is the only thing that is being replaced the muffler with the twin "u" curves and new tips?

Doesn't that basically then make a straight through exhaust? Wouldn't that be too loud for street legal?

Also, if just that little section as shown in the pictures, doesn't $3,500.00 seem a little steep, or is there more to it that I am not seeing?
 

lthlvpr

GT Owner
Mar 8, 2006
299
AZGT- That was the same point I made in the above post. If it doesn't replace the cats and is merely some polished/chromed mandrel bent pipes, someone could duplicate that for around $500. If it includes high flow cats, and nice tips, then $1500 sounds more reasonable.
 

analogdesigner

GT Owner
Mark IV Lifetime
Nov 15, 2005
950
San Clemente, CA USA
pricing

I agree too, it is high,

It only seems to replace the muffler.

However, there may be more to this package. Like installation and a custom tune on the dyno. Jay
 

fjpikul

GT Owner
Mark IV Lifetime
Le Mans 2010 Supporter
Jan 4, 2006
11,680
Belleville, IL
Yeah, fine if you live on the East coast.
 

tiger 6

GT Owner
Mark IV Lifetime
Mar 5, 2006
234
virginia
Apologies for what may seem like an ignorant question, but does the installation of an after market exhaust void the car's warranty? Has anyone checked with Ford on this and received something back in writing?
Thanks.
 

barondw

GT Owner
Sep 8, 2005
1,109
tiger 6 said:
Apologies for what may seem like an ignorant question, but does the installation of an after market exhaust void the car's warranty? Has anyone checked with Ford on this and received something back in writing?
Thanks.

It depends if its a Ford approved item or not. Bob ida's will be a Ford approved probably "off-road" use only as some of the other options are.

If approved by Ford it should be covered.

Dave
 

saber

GT Owner
Sep 25, 2005
153
NYC
Just got off the phone with Bob and I am bringing my car in on April 5. I have a number of things to get done and I will see the muffler on site and determine if it is worth the money. I will let you know.

Thanks
 

barondw

GT Owner
Sep 8, 2005
1,109
saber said:
Just got off the phone with Bob and I am bringing my car in on April 5. I have a number of things to get done and I will see the muffler on site and determine if it is worth the money. I will let you know.

Thanks

Saber

Be sure to have him give you a tour of what they do. Nearly all the components he builds, wheels, intakes, etc. are done on site from billet aluminum.

I will not be in town or I would stop by to say hello.

Dave
 

Tungsten

GT Owner
Mark IV Lifetime
Feb 22, 2006
275
Atlanta
Exhaust

Just got off the phone with Bob at Performance Power about his new exhaust system. Here is what I found out.
1. Emissions...they do not replace the cats. The new pipes are baffled to keep the sound down. It should have no effect on the emissions testing.
2. Sound...Bob says it is consistent with the stock muffler at idle and louder when you run it up. He says it is not loud while cruising, only when you are on it.
3. Warranty....He does not know if it will impact warranty or not.
4. Availability....Bob anticipates that Ford will list the product with their other performance parts and drop ship from his facility.
5. Currently a three week wait as of today based on current orders.
6. Bob reduces the price by 10% if you have it drop shipped and installed by someone else. That puts the price at $ 2965 if he does not do the install.
He feels it would take less than 4 hours to do the install.
7. Temps...Bob said the first GT they did only had 350 miles on it and the engine operating temps went down by about 15 degrees across all
operating scenerios. He also indicated that when you sit in traffic and the temps go up that they will drop much faster with his exhaust system due to the increased airflow once you start moving.
Hope that helps...if anyone gets this system I would really appreciate your thoughts.
I was impressed with Bob over the phone, seems like a guy that just wants to do it right.
Don
 

analogdesigner

GT Owner
Mark IV Lifetime
Nov 15, 2005
950
San Clemente, CA USA
More exhaust system data

Tungsten,

Nice work! I also contacted Bob Ida and indeed, he's a very nice and competent person. I wanted to add some additional data based on my questions in my earlier post.

1. At full throttle (open loop) the A/F ratio ends up at about 10.7:1. He suggested that many of the GT's approach 10:1 which is way too rich, however this is Ford's method of keeping things on the safe side.

2. The air intake temperature is about 10 degrees C cooler while cruising! I feel that this is an excellent percentage improvement!

I like the system because it's so clean and simple looking. The weight reduction is also very nice, since this weight is so far rear of car.

Jay
 

lthlvpr

GT Owner
Mar 8, 2006
299
At that price I will hold off because I am sure someone will get their hands on one, recreate it in Titanium (even lighter), offer it in a polish finish and sell it for about $1500 since the cost is probably less than $500 and still make a quite a profit. Unless I am missing something it simply replaces the mufflers, using the stock cats and the stock tips. Wouldn't this only be about 4-6ft of mandrel bent tubing in total with a couple brackets and some flanges?
I must be missing something else? Maybe it is the baffling in the pipes, but, heck I would forgoe this if it saved my $2000, and I am not sure if even baffling would increase the price this much.
Anyone else have other ideas???
 

Zilla57

GT Owner
Jan 6, 2006
25
St. Louis, MO
Will someone post a video, as others have previously done with the Borla, to show the difference between the stock muffler and this unit? Thanks.
 

Tungsten

GT Owner
Mark IV Lifetime
Feb 22, 2006
275
Atlanta
Exhaust

You can see a picture of it on their website
http://www.perfectpowerusa.com

Just click on the GT on the lower left side.
Their system completly eliminates the box. The muffler effect is done through baffles inside the exhaust pipes.
Hope that helps...
Don
 

analogdesigner

GT Owner
Mark IV Lifetime
Nov 15, 2005
950
San Clemente, CA USA
+60 Hp @ 5,700 RPM

It seems to have a nice 60 HP boost at 5,700 RPM! You have got to be able to feel that. Just a bit pricey though. Jay
 

EasyEric

GT Owner
Mar 6, 2006
355
Florida and Georgia USA
I agree with lthlvpr.

A good custom exhaust or muffler shop should be able to bend some 3 inch pipe, weld on some flanges and some chrome tips for a LOT less than $3000.

Indeed, if one were so inclined, said muffler shop could cut the stock flanges off and, using sizing adapters and clamps, reorient them approximately 90 degrees so the new custom exhaust pipes could exit the rear more gracefully (i.e., straighter exit by eliminatinmg that large curve in the pipe shown on Mr. Ida's site).

Comments?
 

satx

Well-known member
Aug 25, 2005
197
Dana Point
EasyEric said:
I agree with lthlvpr.

A good custom exhaust or muffler shop should be able to bend some 3 inch pipe, weld on some flanges and some chrome tips for a LOT less than $3000.

Indeed, if one were so inclined, said muffler shop could cut the stock flanges off and, using sizing adapters and clamps, reorient them approximately 90 degrees so the new custom exhaust pipes could exit the rear more gracefully (i.e., straighter exit by eliminatinmg that large curve in the pipe shown on Mr. Ida's site).

Comments?

the shape is probably dictated by sound expectations.


I like to see tuners comming out with products for the GT but for 3k it better be titanium AND include a set of headers.
 

analogdesigner

GT Owner
Mark IV Lifetime
Nov 15, 2005
950
San Clemente, CA USA
Exactly!

EasyEric said:
I agree with lthlvpr.

A good custom exhaust or muffler shop should be able to bend some 3 inch pipe, weld on some flanges and some chrome tips for a LOT less than $3000.

Indeed, if one were so inclined, said muffler shop could cut the stock flanges off and, using sizing adapters and clamps, reorient them approximately 90 degrees so the new custom exhaust pipes could exit the rear more gracefully (i.e., straighter exit by eliminatinmg that large curve in the pipe shown on Mr. Ida's site).

Comments?
Exactly! In regards to the reorientation of the 90 degree elbows coming out of the cats! That's what I was thinking when I was going through my Workshop Manual.

I would actually like to design an electronic baffle, whereas the car is relatively quiet until the throttle position is increased. Then it goes "straight-pipe" to reduce the back pressure even further. Jay
 
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barondw

GT Owner
Sep 8, 2005
1,109
analogdesigner said:
Exactly! In regards to the reorientation of the 90 degree elbows coming out of the cats! That's what I was thinking when I was going through my Workshop Manual.

I would actually like to design an electronic baffle, whereas the car is relatively quiet until the throttle position is increased. Then it goes "straight-pipe" to reduce the back pressure even further. Jay

Copy the new Z06 if that is what you want.

Dave
 

JOHN DISALVATORE

GT Owner
Mar 13, 2006
12
POTOMAC MARYLAND
DO YOU HAVE A MORE SPECIFIC DATE? I THOUGHT IDA WAS ALLREADY SELLING THE SYSTEM? BE SURE TO LET ME KNOW WHEN IT IS AVAIL. I WILL BE #3. HAVE YOU DONE ANY OTHER MOD FOR PERFORMANCE?





dw]A new exhaust system is very close to being offered through Ford made by Bob Ida of IdaAutomotive/Perfectpower of Morganville, NJ. www.IdaAutomotive.com or PerfectPowerUSA.com

Bob's new exhaust weighs just 10 pounds including brackets. The stock muffler with brackets weighs 60.5 pounds. It is an exhaust system not a muffler and keeps the cats. Polished stainless, 3" with these additional specs:
10 to 20+ hp over stock
coolant temp decrease of 20 degrees
polished brackets
vintage GT40 sound

This new exhaust was done to reduce operating temps for those who use their cars normally as well as tracking their cars. Mine will be the second car done after the prototype.

Dave[/QUOTE]