Aftermarket over axle pipes question
For those of you who have installed aftermarket over axle pipes on their GT (Lethal, Borla): Have you had any issues with your passenger side pipe popping out of the H-pipe?
I wouldnít have paid $3xx for a set of over axle pipes, but I did pick up a ďusedĒ set on eBay for a couple dollars less. I guess someone installed them and found their exhaust too noisy. The auction indicated they were Lethalís. They showed up looking brand new.
When I installed them I noticed the passenger side only slipped in the H-pipe band clamp about a ľĒ. I tightened up everything and it seemed solid enough so I ran it. Last week I did a long hard pull out of 4th getting onto the highway and at about 5,000 rpm all hell broke loose underneath! I thought I blew something up! First there was a hiss, then a boom, then a bunch of vibration. The passenger side pipe popped out of the H-pipe and was hanging. Luckily everything was supported well enough that I was able to get it home without dragging the hanging pipe. Driving home with an open passenger side exhaust was interesting.
I have GT500 mufflers. Everything fit fine with the stock over axle pipes. Before I slid the pipe back in the H-pipe I loosened the clamps at the over axle bend and muffler and made sure everything was routed correctly. Both mufflers are even at the valance and even with the ground. The rear most muffler hangers are perpendicular to the frame rail. I can push more into the H-pipe slip fit if I push the muffler back further on its mounts. Then it wonít line up with the driverís side looking down at the valance.
Having bought these pipes used I have no idea if the previous owner cut the passenger side shorter. The driverís side fits fine with maybe 2Ē extending into the band clamp.
I see that the passenger side pipe looks shorter on Lethalís site.
Has anyone else noticed this with theirs? Maybe thatís what I get for buying used. I canít have this side popping out whenever it feels like it, so I got a foot of stainless 2.75Ē pipe and Iím going to have a friend cut it and expand it on his machine to make a slip fit extension thatíll fit between the H-pipe and the over axle pipes. The extra cost of stainless pipe + clamps will make this whole thing equal buying a new set of pipes from Lethal or Borla. Oh well.