Heffner Exhaust Q


Superfly

Superfly

HERITAGE GT OWNER
Mark II Lifetime
Jun 23, 2008
2,210
Edmonton, Alberta
I've got Jason's exhaust on my car, and as you know, the exhaust is Ceramic Coated.

I've also recently put on Jake's (Project 321) bumper delete pads. With the original bumper off the car, the pipes do stick out a bit. Vertically, they're aligned with the rearmost (top) part of the car, but visually, they're way out there.

So, as a winter project, hopefully before the January car show my car is supposed to be in, I'm going to talk to a guy I know about cutting the pipes back just a bit, and then re-welding the tips onto the shorter pipes. I'd still like them to stick out, just not as much as they do now. Any advice or things I need to know in advance of doing this? Any issues with the Ceramic Coating before the exhaust tips are welded back on?

Thanks in advance.
 

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The ceramic coating will need to be redone. Will be ground off for prep, and later burned off by the heat of the welding.
 
Superfly said:
I've got Jason's exhaust on my car, and as you know, the exhaust is Ceramic Coated.

I've also recently put on Jake's (Project 321) bumper delete pads. With the original bumper off the car, the pipes do stick out a bit. Vertically, they're aligned with the rearmost (top) part of the car, but visually, they're way out there.

So, as a winter project, hopefully before the January car show my car is supposed to be in, I'm going to talk to a guy I know about cutting the pipes back just a bit, and then re-welding the tips onto the shorter pipes. I'd still like them to stick out, just not as much as they do now. Any advice or things I need to know in advance of doing this? Any issues with the Ceramic Coating before the exhaust tips are welded back on?

Thanks in advance.
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We cut and weld ceramic coated items such as this; since we Tig weld we can control the temperature and the flow/weld metal as such we end up with a very nice narrow row of dimes all the way around that is created with Stainless Steel rod so there are no corrosion concerns and the resulting weld typically blends in with the tip as if designed this way from the onset; furthermore I not only appreciate but also enjoy seeing a very nice weld.

Takes care

Shadowman
 
Thank you both. I will make sure that the guy doing the exhaust both has the above information and is both competent and an artisan as a TIG welder. :cheers
 
One other thing you might wanna consider: what will be the effect vis-a-vis exhaust deposits or FLAMES on the rear facia as the result of moving the ends of the tips further IN toward the body?

I have NO idea. I'm just throwing the question out there... :willy
 
I think I like the current position of the tips - similar to the GT40's but lower. Also will keep the rear cleaner of deposits.
 
looks great:thumbsup are you going to cut the pipes so that they are even with the bumper delete plates?
 
It's interesting that people get the bumper delete to look more like the original GT40, then cut the exhausts flush. Most of the GT40's had their pipes sticking out miles!
 
ThatPhilBrettGuy said:
It's interesting that people get the bumper delete to look more like the original GT40, then cut the exhausts flush. Most of the GT40's had their pipes sticking out miles!
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You gotta admit though, that the flush look sure is clean!!! Plus, there are probably some liability concerns with hot pipes extending WAY OUT beyond the back of the car.........but I don't want to go completely flush. My P321 delete sticks out a bit by design, and I'd like the tail pipes to look consistent with that. :thumbsup
 
soroush said:
looks great:thumbsup are you going to cut the pipes so that they are even with the bumper delete plates?
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EXACTLY!!! :cheers
 
Superfly said:
You gotta admit though, that the flush look sure is clean!!! Plus, there are probably some liability concerns with hot pipes extending WAY OUT beyond the back of the car.........
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Hhhmmm maybe. Then again there's a whole load of cars with exhausts running done the sides. You only get out of them and burn you leg once I can tell you :ack

I know what you mean about looking cleaner though.
 
Actually Pro when I saw your pics with the Heffner exhaust I thought about how good it looks with your bumper plates.

I understand wanting the flush look, but I really thought that I should get a Heffner because I would not have to cut it. If you think your exhaust sticks out I should take a pic of my stock exhaust. :eek Now that sticks out!! :lol :cheers
 
skyrex said:
Actually Pro when I saw your pics with the Heffner exhaust I thought about how good it looks with your bumper plates.

I understand wanting the flush look, but I really thought that I should get a Heffner because I would not have to cut it. If you think your exhaust sticks out I should take a pic of my stock exhaust. :eek Now that sticks out!! :lol :cheers
Click to expand...

OK, I'll bite, let's see what yours look like Tom. And you should get the Heff just because it 1) LOOKS BETTER, 2) SOUNDS BETTER, 3) MAKES BETTER POWER and 4) IT'S SEXY!!!

To be clear, I LIKE that my pipes stick out. I just want to bring them in about 1-2 inches so that they're flush with the bumper plates, NOT flush with the body. Right now, they're about 1-2 inches PAST the bumper plates.

Of course, the car is stacked up on top of the lift, winter's coming, reno's are still ongoing (although I'm promised they'll be done this week), I'm off on a kiteboarding vacation the week after, so you never know, I might lose some motivation........:lol
 
Hi Pro,

As stated earlier in this thread you would have to sand the ceramic coating off of any area that you plan to weld. If you look closely you'll see that there is not much room to simply move the tips back before you run into the bend in the pipe. When we do our bumper delete systems we actually cut the tips in half and weld a ring on the back side to make them shorter. If you'd like, you can send it back to us and we'll convert it to a bumper delete system and have it re ceramic coated.
 
Okay Pro,

Here are pics of mine I just snapped for you. They stick way out, but I am okay with it. Yours look much cleaner and much better by comparison.......obviously. :biggrin

That said it really is personal preference as the only people who have the GT knowledge to know the difference is you and any other GT aficionados that you may encounter. My friend who I run into over at my local C&C who has a GT loved the look and the pipes the way they were. (he still has his bumper) However I find that the people who are admiring the car are too overwhelmed to know that it is missing a bumper. They are just impressed with seeing the car period.

A side beneift to the plates is they do make cleaning the back of the car much easier.

Glad to hear your renos are wrapping up. I got furniture delivery on Friday. (finally) :thumbsup
 

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IMHO they look great - wouldn't change a thing. I think you stand a better chance of getting them all F***ed up if you try modifying them.
 
Ken Miles/Denny Hulme 1966 Le Mans 2nd Place GT40 Mark II (very adjustable Gurney Flap):
 
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