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Well If your car is lowered and/or you live where their are places you scrape or bottom out then, yes. It is mounted to the turbo exhaust housing and if your DP bottoms out it could crack the housing or worse.
I recommend the BIC DDP w/flex section.
I recommend the BIC DDP w/flex section.
I always wondered why it was there. Speaking of bottoming out, how's the ground clearance on the BIC DDP?
If you wonder why there is a flex pipe, maybe you could check with automotive manufacturers that put them on many many applications.
The car can twist a small amount on the road. The flex pipe keeps it from breaking as noted.
The car can twist a small amount on the road. The flex pipe keeps it from breaking as noted.
Not to mention the torque from the motor itself will cause the engine to move....the downpipe is fairly stiff and on one side of the motor. The flex section relieves the resulting stress to the turbo mounts. Is it required? No...is it a good idea? Yes, IMO.
Solid motor mounts and transmission mounts will negate the real need for a flex section. You can add one for peace of mind, and I would suggest the tractor trailer style flex sections. They're smooth inside, not corrugated like most of the general automotive ones.
i'd say yes, it's a good idea. there will ALWAYS be flex in the system....and it allows for a bit of error when building your exhaust.
If you look at the stock setup, the downpipe is bolted to the elbow (bolted to the turbo and rest of the engine). There is a "flex" section in the downpipe, then after the flex section, there is a bracket that mounts the exhaust to the transmission. The whole exhaust is bolted to the engine before and after the flex section. So this means that the "flex" section is really just a heat expansion section (i.e. it's just there to allow the metal to have an expansion area since if sees such high temperatures).
its still possible to add a flex section if u bought a DP without one right??
just a weld on procedure im guessing.
just a weld on procedure im guessing.
it helps when your putting the dp back on. You can move it a bit to get it over the bolts on the elbow. Unless the exhaust was built perfect
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drumminforev
Guest
supra90turbo said:
Thanks for all the replys, i think ill be getting a flex pipe for sure.
How do i know if its trailor style or not?
i guess u didn't read his last sentence he said, "They're smooth inside, not corrugated like most of the general automotive ones."
so that answers your Q.
ne one that can answer my Q in post 11.
so that answers your Q.
ne one that can answer my Q in post 11.
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drumminforev
Guest
Ok they are corrugulated. so I wont know if its smooth or not until i buy it . my question was how to know before i buy if it doesnt say 'trailer style'
flight doc89 said:
Are you referring to the flex section breaking? Never had any problems with any of my non flex exhausts. That's what rubber hangers are for.
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