N-11 Exhaust Question.

[Greg D.]

Re: N-11 Exhaust Question.

Yes I did. Another NCRS member who coincidentally is in Southern California near me has some. I believe they may be Walkers which to the best of my understanding may have been GM over the counter replacements. But they were not Arvins - which were the MFG for original N11's

[Alan D.]

Re: N-11 Exhaust Question.

Greg,
Believe the NOS or over the counter stuff was still Arvins - part numbers end in "A" Lots of past discussions on these numbers.
Comments about purchasing all from a single source make a lot of sense. Tried to just purchase front pipes for my N11 from CC and they were wrong (even took pictures of original v CC), however "thats what the computer bends and they always work." So expect same rational from any vendor if part does not fit.

I would however take a chance on just the muffler if you plan to weld like original. I've heard Dan's and would say the sound is right on the money.

Assume the new pipes with a N11 system have been flattened correctly so check your pipes for that feature.

[John H.]

Re: N-11 Exhaust Question.

Greg, have you tried to get NOS N11 mufflers only? I believe they sold them that way also.

Dan -

The N-11 mufflers were only serviced as a complete assembly of the intermediate pipe and the welded muffler, as supplied to production.

[Dan H.]

Re: N-11 Exhaust Question.

Dan -

The N-11 mufflers were only serviced as a complete assembly of the intermediate pipe and the welded muffler, as supplied to production.

Thanks John, I had bought an NOS set in the 80's and they indeed came welded up to the pipe. I have had several members mentioning having the mufflers only, so I assumed they were sold later as a muffler only?
Dan

[John H.]

Re: N-11 Exhaust Question.

Thanks John, I had bought an NOS set in the 80's and they indeed came welded up to the pipe. I have had several members mentioning having the mufflers only, so I assumed they were sold later as a muffler only?
Dan

Dan -

The Walker-manufactured production mufflers were always available separately (the only way they were available), but as far as I know, the Arvin-manufactured N-11's were only available as a welded assembly; that's how they're shown on the Arvin drawings as Service parts.