Anyone with the TSP True Duals...
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On The Tree
Joined: Sep 2005
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From: Albuquerque, New Mexico
Anyone with the TSP True Duals... I have had the TSP True Duals System on my 98 Trans Am for a little over a month and just recently it started to make a wierd kocking/vibrating noise inside the car when driving. I think it's coming from the exhaust pipe knocking against the bottom of the car. It only does it at a certain RPM range, from about 1500 to 2200. Has this happened to anyone else?
It's probably hitting under the driver's side floorboard. Have someone get in the car and CAREFULLY put it in drive, HOLD THE BRAKE, and give it a little gas. AGAIN, DO THIS VERY CAREFULLY.
If it's hitting, you should be able to see the pipe touch the floorboard.
Mine hit until I got poly motor mounts. I rigged it until I got them by using a piece of high-temp hose between the pipe and the body, held on by a radiator clamp.
Hope this helps.
If it's hitting, you should be able to see the pipe touch the floorboard.
Mine hit until I got poly motor mounts. I rigged it until I got them by using a piece of high-temp hose between the pipe and the body, held on by a radiator clamp.
Hope this helps.
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From: Your girl's back door giving her the long stroke while you're at work
Originally Posted by DOUBT IT
It's probably hitting under the driver's side floorboard.
If it's hitting, you should be able to see the pipe touch the floorboard.
If it's hitting, you should be able to see the pipe touch the floorboard.
Mine did the same thing but only during WOT. You should be able to see where the pipes have been hitting due to the paint being rubbed off. Nothing a sledge hammer won't fix 
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I've seen a valve spring welded to the exhaust between it and the body before 
Might just need to beat and bang on somthing to make a little more clearance clarence. Make sure all the clamp bolts are oriented as to not hit anything.
POLY mounts are the only way to go. Also, you could take off your tranny mount and make sure it isnt broken. I've got poly motor/tranny mounts on my car (with TSP duals), and love them. Car feels iike a rock now.
Also, at exactly 1900 rpms, i've got the meanest resonation you've ever heard. Does anyone else experience this?
Might just need to beat and bang on somthing to make a little more clearance clarence. Make sure all the clamp bolts are oriented as to not hit anything.POLY mounts are the only way to go. Also, you could take off your tranny mount and make sure it isnt broken. I've got poly motor/tranny mounts on my car (with TSP duals), and love them. Car feels iike a rock now.
Also, at exactly 1900 rpms, i've got the meanest resonation you've ever heard. Does anyone else experience this?
I have seen people weld a metal rod onto the pipe, and bend it into an L shape , and have another one like it but shorter, bolted to the floor pan and had an old rubber exhaust mount from the stock catback to absorb the vibration. You can stack washers on top of the L bracket that is mounted to the floor pan to adjust the pressure that the mount puts on the actual exhaust pipe. This solved the problem with my friends banging kooks y-pipe on his trans am and I don't see why it would not work for your duals.
Originally Posted by JoeyAnderson
I'm with you 
He said he can't even hear himself think at certain cruising rpms.
Originally Posted by DreamState23x
Are your tips pointed sctraight down or out at angle, My friend just had his pu on and they pointed the turndowns straight down. He said he can't even hear himself think at certain cruising rpms.
He said he can't even hear himself think at certain cruising rpms.
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From: Arlington, Texas (Dallas Area)
The only problem I have with mine is I have to go real slow over every bump because I have a 1/2 inch ground clearance. Other than that no weird noises coming from it or anything. I have noticed I cannot hear anything in the car though, and barely the stereo. It is worth it though, for it to sound like a Killer!!
Other than that no weird noises coming from it or anything. I have noticed I cannot hear anything in the car though, and barely the stereo. It is worth it though, for it to sound like a Killer!! 
Originally Posted by fasttagurl
The only problem I have with mine is I have to go real slow over every bump because I have a 1/2 inch ground clearance. Other than that no weird noises coming from it or anything. I have noticed I cannot hear anything in the car though, and barely the stereo. It is worth it though, for it to sound like a Killer!!
Other than that no weird noises coming from it or anything. I have noticed I cannot hear anything in the car though, and barely the stereo. It is worth it though, for it to sound like a Killer!!