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· Senior Contributor
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Discussion Starter · #1 ·
I will soon be installing a new exhaust system. There is a chance this will entail stripping off lots of the undercoating under and in the car (I undercoated the inside when I had the car stripped) and doing some cutting

With the new exhaust with the long collector I may need to modify under the car to make it fit. This mean cutting the floor and making an exhaust tunnel then adding metal to the top to cover it. The floor will look like yard does when a mole goes through it.

Because I am basically lazy I was thinking I would be doing less tedious undercoating removing if I ran the exhaust out the side by the passenger rear wheel Hence the zoomie idea.

Since I am making a tunnel I might as well make one big enough to stuff a muffler along with heat shielding. I could leave the shielding out and claim to have a heated passenger seat like the Audi Quattro's. Regardless the undercoating must go.

If zoomies are a bad idea I am very open to what would be the best exhaust system for my car. What do they use in the FP and GT4 classes? Does anyone have any pictures of race exhaust systems?

Thanks,
Calvin
 

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ya know i dont know very much becuz im still learning alot but wouldnt tunnels kinda make the interrior of your car like the rocky mountains (lol) couldnt you run exuast down the drivers side and the pass side like the older corvetts?
 

· OPEL-LESS!!!
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2,111 Posts
calvin, what about making your exhaust tunnell right next to the transmission tunnell? that way you dont have a extra hump in the middle of the passenger side floor, altho i know you not being a passenger in your car wont be too worried about it, haha.

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/ \
/ \
----- -------- without exhuast tunnel, tryin to represent the flat floors for driver and passenger side with transmission tunnel

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/ \
/ \---
-----/ \------------- this being with the exhaust tunnel if these crazy little symbol pics maky any sort of sense.
 

· Senior Contributor
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Discussion Starter · #4 ·
I was looking in Grassroot motor sports to what they did to a triumph running it along the tunnel.

I am waiting for the piece to arrive but I think that it ends about the middle of the passeger seat. Since I NEED the long collector tube the floor has to go to allow placement this piece. Then the pipe direction can be changed to head for the drive shaft tunnel. However if I am cutting the floor anyway I could just cut a bit more to accommodate a muffler and on out to the zoomies. I have a huge dent under the car anyway where a PO hit something (large rock or tree stump) in a NASA race.
 

· OPEL-LESS!!!
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go figure, once i posted those stupid little things they got all mixed up.
 

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