Is a flex tube 100% necessary on the DP?
None of them have cracked. 
11-12-2009, 11:36 PM
#46
I'd like to point out FM uses a 100lb cast dp elbow.
"The pipes are cut and bent on a massive CNC (computer numerical control) pipe bender for consistency and accuracy. Due to the accuracy of the process, we were able to remove a heavy, expensive flex joint that was also a potential failure point."
Ironic isn't it. "We saved 3lbs on your downpipe by adding a 20lb elbow."
"The pipes are cut and bent on a massive CNC (computer numerical control) pipe bender for consistency and accuracy. Due to the accuracy of the process, we were able to remove a heavy, expensive flex joint that was also a potential failure point."
Ironic isn't it. "We saved 3lbs on your downpipe by adding a 20lb elbow."
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11-13-2009, 01:10 AM
#47
I'd like to point out FM uses a 100lb cast dp elbow.
"The pipes are cut and bent on a massive CNC (computer numerical control) pipe bender for consistency and accuracy. Due to the accuracy of the process, we were able to remove a heavy, expensive flex joint that was also a potential failure point."
Ironic isn't it. "We saved 3lbs on your downpipe by adding a 20lb elbow."
"The pipes are cut and bent on a massive CNC (computer numerical control) pipe bender for consistency and accuracy. Due to the accuracy of the process, we were able to remove a heavy, expensive flex joint that was also a potential failure point."
Ironic isn't it. "We saved 3lbs on your downpipe by adding a 20lb elbow."
What I asked wasn't whether it's heavier but whether the current FM downpipe tends to break. If your only answer is useless sarcasm why bother.
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11-13-2009, 11:20 AM
#50
lol
Guess I have to spell it out for you. It can't break because they use a heavy wall, cast iron piece. FM has no place in this conversation because no one else uses a cast elbow. Just because they don't use one, doesn't mean one is not needed.
Tim on the other hand makes a fabricated piece, so if he doesn't use a flex, maybe one isn't needed. Either way, I'll take my cheap insurance.
Guess I have to spell it out for you. It can't break because they use a heavy wall, cast iron piece. FM has no place in this conversation because no one else uses a cast elbow. Just because they don't use one, doesn't mean one is not needed.
Tim on the other hand makes a fabricated piece, so if he doesn't use a flex, maybe one isn't needed. Either way, I'll take my cheap insurance.
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11-13-2009, 11:27 AM
#51
My fabricated Greddy replacement DP didn't have a flex, and never had a problem with it (neither did the original DP either). My BEGI does have a flex and I wish it didn't. The flex is significantly larger than the 2.5" pipe leaving very little clearance around it, so getting the DP in a place where the flex doesn't rub is difficult.
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11-14-2009, 01:45 PM
#54
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For the record, I haven't had a flex pipe on any of the 3 turbo setups I have used and had no issues with cracking. But I also never attached it at the transmission and had good motor mounts.
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NA ? BEGI fit is inconsistent as hell?
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