side pipe baffle
Thread Starter
Instructor
Joined: Jan 2003
Posts: 207
Likes: 0
From: Seaford DE
side pipe baffle
i just installed side pipes and love the sound 
but i am afraid the state of Delaware may not. has anyone tried to make up a temp baffle to quiet the pipes enough to go thru inspection? in DE we are allowed 99 dec at 2000 RPM. i am sure these pipes won't make it.
Thanks
TL
but i am afraid the state of Delaware may not. has anyone tried to make up a temp baffle to quiet the pipes enough to go thru inspection? in DE we are allowed 99 dec at 2000 RPM. i am sure these pipes won't make it.Thanks
TL
Racer
Joined: Nov 2005
Posts: 436
Likes: 14
From: LIFE IS GOOD Along the Strand New Jersey
Used steel wool back in the day. Stuff it in (coarse wool not the fine wool), then get some perforated metal and cut to wedge in the pipe. This will hold the steel wool when the inspector revs the engine.
Melting Slicks
Joined: Oct 2004
Posts: 3,345
Likes: 87
From: Northern MN
St. Jude Donor '13-'14-'15-'16-'17
i just installed side pipes and love the sound but i am afraid the state of Delaware may not. has anyone tried to make up a temp baffle to quiet the pipes enough to go thru inspection? in DE we are allowed 99 dec at 2000 RPM. i am sure these pipes won't make it.
Thanks
TL
but i am afraid the state of Delaware may not. has anyone tried to make up a temp baffle to quiet the pipes enough to go thru inspection? in DE we are allowed 99 dec at 2000 RPM. i am sure these pipes won't make it.Thanks
TL
Even in DE wouldn't your car be grandfathered in??? In most states they accept the car as it came from the factory even though it may not make the current standards. Just explain to the inspectors that the car originally came with side exhaust from the factory and if you have to take them off it will de-value the car, being that it is what they call a classic. They don't have to know that you just added them. Something to think about.
Steve
Race Director
Joined: Jun 2006
Posts: 17,901
Likes: 751
From: Inverness FL
St. Jude Donor '07
Bill
Team Owner
Joined: Mar 2003
Posts: 26,118
Likes: 1,874
From: Greenville, Indiana
I have used stainless steel scouring pads for this purpose in the past. They're not nearly as dense as the "scrubbing" pads.
Another thought and I don't recommend you to drive it far like this but you could drop the pipes from the manifolds, lay a large washer on top of the sleeve insert and bolt it back up. You'd be way down on power but it might get you past the inspection.
Another thought and I don't recommend you to drive it far like this but you could drop the pipes from the manifolds, lay a large washer on top of the sleeve insert and bolt it back up. You'd be way down on power but it might get you past the inspection.
Moderator
Joined: Jun 1999
Posts: 7,117
Likes: 51
From: Dove Mountain Arizona
I took some motorcycle spark arrestor baffles and stuffed them in the side pipes at the header connection. They are about 6" long and take the bark out. They cost you some power but do work.
Intermediate
Joined: Feb 2004
Posts: 41
Likes: 0
From: seattle wa
Was this while you lived in WA? I live in Redmond, and I've got the classic tags for my car that never have to be renewed, and have no safety or emissions inspection attached to them.
Le Mans Master
Joined: Jul 2003
Posts: 6,808
Likes: 24
From: Westport CT
i just installed side pipes and love the sound but i am afraid the state of Delaware may not. has anyone tried to make up a temp baffle to quiet the pipes enough to go thru inspection? in DE we are allowed 99 dec at 2000 RPM. i am sure these pipes won't make it.
Thanks
TL
but i am afraid the state of Delaware may not. has anyone tried to make up a temp baffle to quiet the pipes enough to go thru inspection? in DE we are allowed 99 dec at 2000 RPM. i am sure these pipes won't make it.Thanks
TL
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Moderator
Joined: Jun 1999
Posts: 7,117
Likes: 51
From: Dove Mountain Arizona
Intermediate
Joined: Feb 2004
Posts: 41
Likes: 0
From: seattle wa
I see, thanks for the response. I'm interested in quieting down my sidepipes also, so that I might have more of a chance of my girlfriend wanting to ride in the car with me. Roughly how much power would you say was taken away by adding those arresters, and was the noise reduction significant?
Racer
Joined: Nov 2005
Posts: 436
Likes: 14
From: LIFE IS GOOD Along the Strand New Jersey
The problem may not necessarily be the noise level. Even if the pipes were 'factory' installed, they are still listed as "Off Road", which would be hard to bypass, if the inspector really wanted to fail you, they could. I had an underneath set that I would put on for inspection. It was a simple operation to do once a year.
Le Mans Master
Joined: Jul 2003
Posts: 6,808
Likes: 24
From: Westport CT
I agree if the inspector were to see anything designated for offroad use, your "sold by GM back in the day for legitmate use on the road" argument would be weakened.
Moderator
Joined: Jun 1999
Posts: 7,117
Likes: 51
From: Dove Mountain Arizona
I've had so many requests for this that I've decided to do this for folks interested. I'll work out of my garage. This may turn into a real business but for now I'm just testing the waters. Hopefully all will be satisfied, I know I am with my temporary fix. I'll need your inside pipe diameter at the header connection and distance to the first bend. The permanent fix requires converting your existing side pipes to glas-pak style. No aftermarket mufflers installed, just be happy that your pipes will be sliced and re-welded. The same shape and O.D. will be maintained along with the same I.D. This works especially well for the big dia. aftermarket side pipes. PM me for prices. Thanks
