Side Exhaust '67 coupe

[Bruce A.]

I'm preparing to install my stock side exhaust kit on my '67 coupe.
Is it necessary to remove the fiberglass body "ears" that protrude
down...behind the front tire and in front of the rear tire?

[Kenneth B.]

Re: Side Exhaust '67 coupe

No don't think you need to but I think you might have to cut the body tab behind the front wheel to get the clip in. But you know if you don't cut the others every armchair NCRS wanabe judge will tell you its not a REAL side exhaust car. LOL

[Harry S.]

Re: Side Exhaust '67 coupe

I'm preparing to install my stock side exhaust kit on my '67 coupe.
Is it necessary to remove the fiberglass body "ears" that protrude
down...behind the front tire and in front of the rear tire?

Bruce, somewhere in the archives is a document that lists and shows what is done to install side pipes. It was created as a Judging Tool but can be used to install the pipes. I suggest you do not cut the metal tabs that attach the rocker panels, just bend them out of the way. This is in case you decided to have the car judged some day. It's a big point loss when you judge a car with side pipes that was not born with side pipes.

[Bruce A.]

Re: Side Exhaust '67 coupe

Ken, am I hearing you correctly that a NCRS judge will require that both tabs (front & back) be remove to be..."authentic"?

[Harry S.]

Re: Side Exhaust '67 coupe

Ken, am I hearing you correctly that a NCRS judge will require that both tabs (front & back) be remove to be..."authentic"?

To look authentic. In about 100% of the cases all cars that have side pipes that were not born with side pipes are detected. It's a debate but it's somewhere between a 150 to 200 point loss. You can probably kiss Top Flight good by.

Only bodies built in St. Louis had side pipes, no A O Smith bodies had side pipes.

[Leif A.]

Re: Side Exhaust '67 coupe

Ken, am I hearing you correctly that a NCRS judge will require that both tabs (front & back) be remove to be..."authentic"?

Bruce,
I think the simple answer here is that if your car did not come from St. Louis with side exhausts and you're planning on having your car judged in the future, non-factory side pipes are very easily detectable and not worth the point loss. If you're not planning on having your car judged, bend the tabs up and out of the way so that a future caretaker of your car can return it to stock configuration without a lot of hassle.

[Bill L.]

Re: Side Exhaust '67 coupe

HI Bruce:

You do need to remove the front fender tabs for clearance purposes. It is not necessary to remove the rear tabs.

Screen Shot 2015-10-27 at 12.01.42 PM.jpg

As for judging --- results will vary depending on the meet level (Chapter/Regional/National) -- in most cases the change is going to be detected. There are several items that are pretty hard to fake when adding side pipes and the level of emotion and the number of self appointed experts will not serve you well if you have added side pipes. You are going to get caught --- just stay calm and be prepared -- its the price you pay for that "alteration"

If you do get judged just realize the deductions are going to sting a bit --- they can be overcome with driving points though and that helps a lot.

My last time out I seem to recall about 84 points or so on the pipe deduction --- I drove the car so I earned back a full point and got a healthy Top Flight ------not bad for added side pipes and it was still a lot of fun!!!

Hope this helps a bit...

Regards
Bill

(PS sent you a PM as well...)

[Michael J.]

Re: Side Exhaust '67 coupe

I think the broad variations on deducts for added side exhaust is interesting here:

https://www.forums.ncrs.org/showthread.php?110560-Update-on-discussion-of-total-deducts-for-added-side-exhaust&highlight=added+side+exhaust+deductions

[Bill L.]

Re: Side Exhaust '67 coupe

It sure is interesting----- we really need a definitive deduct amount for added side pipes ----

Once any one of the known "added side-pipe indicators" is detected then the standard should kick in ---- maybe one or two variations but the current situation is just nutz.......

[Michael J.]

Re: Side Exhaust '67 coupe

It sure is interesting----- we really need a definitive deduct amount for added side pipes ----

Once any one of the known "added side-pipe indicators" is detected then the standard should kick in ---- maybe one or two variations but the current situation is just nutz.......

I agree, it should be on the standard deduct sheet like tires and batteries, not sure why it isn't, it is a very common addition to C2s and even C3s.

[Jack M.]

Re: Side Exhaust '67 coupe

Found this on my computer... not certain where it came from or if it's helpful to you:
sidepipe fiberglass trim.jpg

[Wally A.]

Re: Side Exhaust '67 coupe

make sure you positively want those side pipes....putting them on is way easier than trying to go back to under
car exhaust..and remember to keep your fiberglass tabs and brackets if you decide to go with sidepipes, just in case

[Patrick H.]

Re: Side Exhaust '67 coupe

If you want the sound of the side pipes but not the hassle as documented above, then consider installing the chambered undercar exhaust. It uses the same mufflers as the side exhaust but mounts them under the car. I put this on my 71, and really like the sound. In addition, it's easily reversible to conventional exhaust any time you wish.

http://www.mamotorworks.com/Corvette/product/chambered-exhaust-specify-327-or-396427-603852-1

[Bruce A.]

Re: Side Exhaust '67 coupe

Where and why does this drawing exist?
Does the drawing suggest cutting both sides (behind the front tire and in front of the rear tire) in order to install side pipes?

[Patrick H.]

Re: Side Exhaust '67 coupe

Where and why does this drawing exist?
Does the drawing suggest cutting both sides (behind the front tire and in front of the rear tire) in order to install side pipes?

The drawing is from the AIM (assembly instruction manual) which contains a lot of the details on how to install side exhaust.