N-11 off-road reproductions

[Jeff A.]

Hello all,
Back on March 31 there was a fairly active thread regarding the possibility of an accurate N-11 exhaust system being reproduced. It was STRONGLY hinted that such a system would make its debut at the Motor City Regional, which is coming to a close today. Does anyone have anything to report?
Much thanks!
Jeff

[Jeff A.]

Re: N-11 repro at Motor City Regional?

ttt
No feedback?? Can I assume that the prospective vendor didn't come through? That's disappointing. My body-off is progressing. We just dropped the engine, trans, rear and suspension onto the chassis. The body is primed and being block sanded, and the exhaust system isn't too far down the pike. I was hoping that the off-road repop might be ready in time. Oh well...

[Dan P.]

Re: N-11 off-road reproductions

If anybody is going to make it, it'd be Gardener Exhaust. Look them up on Google.

[Patrick H.]

Re: N-11 off-road reproductions

It's not Gardner exhaust - it's a different vendor.

I was told that they'd be there, even when I asked 2 days prior. As you note, they didn't show. I'm not sure why but I can check into it.

Patrick

[Jeff A.]

Re: N-11 off-road reproductions

It's not Gardner exhaust - it's a different vendor.

I was told that they'd be there, even when I asked 2 days prior. As you note, they didn't show. I'm not sure why but I can check into it.

Patrick

Thanks Patrick. If you're at liberty to divulge their name, either on the forum or by PM, it would be most appreciated.
Regards,
Jeff

[Tom K.]

Re: N-11 off-road reproductions

The new supplier for the GM Licensed N-11 off road exhaust mufflers for C2 Corvettes is Waldron's Antique Exhaust. Contact Joe Tonietto at 1.800.503.9428 or www.waldronexhaust.com
Joe is working with Corvette Central as a supplier for the pipes and he will be ready to accept orders next week - the mufflers are correct in size, shape, correct materials and most important - SOUND!! I have seen and heard this muffler and it is very correct and it will be a must for every restoration plus it will save you $$$ over ebay items.

[Dick W.]

Re: N-11 off-road reproductions

The bends in the pipes shown on Waldron's site appear to be the same incorrect style that most vendor's have been supplying for years. That is obvious when you look at the repro pipes

[Jeff A.]

Re: N-11 off-road reproductions

Tom,
Thanks for the source info! I'll get in touch with them tomorrow.

The bends in the pipes shown on Waldron's site appear to be the same incorrect style that most vendor's have been supplying for years. That is obvious when you look at the repro pipes

Dick,
My old pipes were under-body chambered, so nearly anything that approaches a factory design is more correct. And if these N-11s are no worse than the other reproductions out there, it sounds like I can't go too far wrong. I looked at the judging sheets and it appears that the exhaust system carries 10 originality and 10 condition points. I assume that the penalty would be minimal. Any ballpark on the hit I'd take for the incorrect bends?
Cheers to both of you!
Jeff

[Dick W.]

Re: N-11 off-road reproductions

I would contact Gardner's and compare the pipes and muffler before I spent the money.

[Jeff A.]

Re: N-11 off-road reproductions

I would contact Gardner's and compare the pipes and muffler before I spent the money.

Aw Dick!
I had my mind all made up and now you have me all confused again . I'll do the comparison, but the original sound of an N-11 could be pretty persuasive!
Thanks for your insight.
Jeff

[Tom K.]

Re: N-11 off-road reproductions

Hi, Dick and Jeff - The pictures shown on Waldtons web site are not the new N11 off road set that will be available next week - lets give the vendor time to introduce the new product before we shoot it down! The frist prototype set are on a 1965 in Werner Meier's shop "Masterworks" located in the Detroit area - they look and sound great!
Tom

[Jeff A.]

Re: N-11 off-road reproductions

I just got off the phone with Joe Tonietto of Waldron Exhaust (and former owner of a '57 that he restored from the ground up). What a nice guy! He explained that his company will be fabricating the mufflers and providing them to Corvette Central where the entire exhaust system will be assembled and welded. He's a couple of weeks away from supplying them with the samples for preproduction assembly and it'll take CC some time to produce them and make them available for sale. Joe hasn't figured a wholesale price for CC yet, so the price for the complete system hasn't been established. However, if you're looking for individual components, and not an assembled system, Joe may be able to set you up. To test the sound quality of their prototype, they installed it on one side of a fuelie and put an original N-11 on the other side. He claims that they sounded identical.
Regards,
Jeff

[John S.]

Re: N-11 off-road reproductions

Jeff,

Will this be a aluminized or steel system?

[Jeff A.]

Re: N-11 off-road reproductions

Jeff,

Will this be a aluminized or steel system?

Good question. I forgot to ask. My bad...

[Joe T.]

Re: N-11 off-road reproductions

Several months ago, I was asked by Tom Komendera (Treasurer of the NCRS Michigan Chapter) and Werner Meier (President of Master Works Automotive Services) if Waldron's Antique Exhaust could reproduce the original sound of the C2 off-road exhaust. We've been successful in our efforts and are now ready to begin production of these mufflers.

Like the originals, these mufflers are double-walled with rolled end cap seams. The muffler shells and end caps are aluminized steel. We also utilized heavy gauge aluminized steel for the internal tubes and baffles. The outboard side of the case has a contoured seam cap that prevents the inner shell's crimped seam from "creasing" the outer shell. The internal baffles, tubes and chambers replicate the original parts and you can hear the results in these short video clips:

http://www.youtube.com/watch?v=ZEODysdUtu0

http://www.youtube.com/watch?v=_sZWNwL-5Yc

The mufflers will be available as part of complete welded assemblies from Corvette Central Exhaust.

We had intended to introduce these in May at the Motor City Regional Meet, but unfortunately, our tooling was not completed in time for that event.

You can see sample parts at the Corvette Central Exhaust display at Bloomington this weekend (June 25-28).

We are very proud the results of our work with Werner Meier and the team at Master Works as well as Jerry Kohn's team at Corvette Central Exhaust. In our side-by-side comparisons, sound pressure levels and tone were virtually indistinguishable from the original GM parts to which ours were compared.

These mufflers are licensed GM Restoration Parts.