FOURSPEEDVETTE

84 4+3

Pretty much exactly what I experience.

turtle96

I have a set of Allen's chambered deletes waiting to be installed on my car. I am debating the H pipe. Where did you place the H pipe in your system? Can you describe what you mean when you say it evens out the sound? thx

How many others on the thread have installed the H pipe?

FOURSPEEDVETTE

I don't have a catalytic convertor any longer (antique plates) and my dual exhaust used to just go from the manifolds straight to the mufflers. When I put the Allens chambered muffler deletes on in place of the full size mufflers, my exhaust note seemed to be a little unsettled at idle and just plain loud. Sort of like glasspacks. Not a good sound. When I placed the "H" pipe in the system, the flow became even between the two pipes and a more mellow rumble was acheived. Nice! My "H" pipe was welded in about halfway back in the exhaust pipes. The "H" pipe resembles the letter "H". Some guys use an "X" pipe. It resembles the letter "X". I think they are similar in what they do. Everyone I know with straight through pipes on their C4 has one or the other for the same reasons I did. I HIGHLY recommend the "H" pipe. It made a world of difference in giving the exhaust note a "tuned" sound. It's relatively cheap to buy and install.

84 4+3

I forgot to add, before and after sound clips are required.

turtle96

Would not be bad!

valiant68

Just finished installing my new muffler eliminators on my 92, I really like them everything You guys said they would be, mine are from ecklers with the factory lt1 tips, easy install look and fit great, now it sounds like a corvette should, mine has no popping on deacceleration, Thanks Guys for your help and info.

84 4+3

Good. Now video or it didn't happen lol.

FOURSPEEDVETTE

Do you have an automatic or a manual transmission?

The Thomas J

Those sound great.

valiant68

Its an automatic.

valiant68

Sorry no videos, I was so excited to get them on forgot to make one lol.

valiant68

Theres one thing for sure, makes me wanna drive my car more now since those factory boring mufflers are gone now.

valiant68

Komiller118

Not trying to hijack thread, but
is there an advantage to ordering pre fabbed deletes over having a muffler shop remove mufflers and bend new pipe in their place?

84 4+3

if you want different tips than what you have. That's about it.

FOURSPEEDVETTE

The advantage is that pre-fabbed deletes can have "chambering" built into them as my "Allens" deletes have. This gives a better sound in my opinion. Also the stainless steel tips are installed ahead of time. These additions cost about twice the cost of plain bent pipes at a muffler shop.

FOURSPEEDVETTE

This would explain why you don't get a decelleration popping noise.

valiant68

The install took about an hour, measured sawsall the old mufflers off, they came with big clamps, i snugged them down drove it came back home and welded them , I knew they werent coming back off lol.

USA1LT1

I just did the muffler delete mod on my '92 LT1 6-speed Coupe. I had straight pipes welded in by my local muffler shop, and the best part is they had an extra set of stock LT1 tips they threw in for free. That way if I ever decide to go back to the stock mufflers, I can have the old mufflers/tips welded right back on.

The sound is much louder but it sounds like a Corvette should sound. I have a fair amount of droning on the freeway at 65mph in 6th gear, but it largely goes away at higher speeds.

On deceleration, I get a series of rumbles, pops, woofs, and burbles that sound fantastic.

I call it my "Budget Borla" mod.