Removing the bottleneck from the Greddy Evo TT
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Ive seen alot of threads that mention removing the 50mm bottleneck off of the greddy evo tt midpipe, but nothing really that describes the process. Will someone who has performed the removal please tell me how to do it
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We've tried a few different methods, but we starting making this small SS extention tube in 2.75 inch, and flaring it out to 3 inch to mate up the typical 3 inch downpipes we are using with the TT kits. We tig weld the pieces together. If you are bolting up your EvoTT to a set of 2.5 inch test pipes, there is no need to do any modifications.
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Originally Posted by Sharif@Forged
No, it Jeremy's.
Your looks pretty much the identical...but no need to flare it out on yours.
Crawl under your car and take a look...its purty under there.
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Crawl under your car and take a look...its purty under there.
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Originally Posted by Sharif@Forged
Yup, then you need a three inch flange on your exhaust, for a perfect fitup.
you wouldnt happen to sell those pre welded sections of flange and flared pipe would you? I can find somone to weld the rest of it up
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Originally Posted by eagletanggreen
Hey man I've been walking around at night time for the last thre months, I am sure I can get around the shop in the day time without stepping or walking into things...![Big Grin](https://my350z.com/forum/images/smilies/biggrin.gif)
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Sign the confession! or I will sick Pearl on you!
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Originally Posted by Sharif@Forged
No, it Jeremy's.
Your looks pretty much the identical...but no need to flare it out on yours.
Crawl under your car and take a look...its purty under there.
![Smilie](https://my350z.com/forum/images/smilies/smile.gif)
Crawl under your car and take a look...its purty under there.
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I opened the bottle neck on my Greddy EvoTT. Its very easy. Just take it to a muffler shop and have them put it on their pipe stretcher/expander. Takes 5 minutes and no welding necessary.Bring the 3" flange with you so they can get it perfect.
Or just buy one of the pieces from Sharif....
Or just buy one of the pieces from Sharif....
Last edited by coachk; 01-25-2008 at 05:42 AM.
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Very nice welds Sharif. Looks like you've got someone with skillz! Can't wait to see what your guys can do for me
.
CoachK - so you had the shop cut the existing flange off, then expand to 3", then weld the new 3" flange on? I guess that is one less weld... Do you have any pics of the end result by chance? I asked an exhaust shop and they said they could expand reasonably up to 1/4" using their expander. I was told going from 2.5" to 3" was going to be questionable. Did you expand to 2.75" or all the way up to 3"?
![Wink](https://my350z.com/forum/images/smilies/wink.gif)
CoachK - so you had the shop cut the existing flange off, then expand to 3", then weld the new 3" flange on? I guess that is one less weld... Do you have any pics of the end result by chance? I asked an exhaust shop and they said they could expand reasonably up to 1/4" using their expander. I was told going from 2.5" to 3" was going to be questionable. Did you expand to 2.75" or all the way up to 3"?
Last edited by rcdash; 01-25-2008 at 05:49 AM.
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Originally Posted by rcdash
Very nice welds Sharif. Looks like you've got someone with skillz! Can't wait to see what you can do for me
.
CoachK - so you had the shop cut the existing flange off, then expand to 3", then weld the new 3" flange on? I guess that is one less weld... Do you have any pics of the end result by chance? I asked an exhaust shop and they said they could expand reasonably up to 1/4" using their expander. I was told going from 2.5" to 3" was going to be questionable.
![Wink](https://my350z.com/forum/images/smilies/wink.gif)
CoachK - so you had the shop cut the existing flange off, then expand to 3", then weld the new 3" flange on? I guess that is one less weld... Do you have any pics of the end result by chance? I asked an exhaust shop and they said they could expand reasonably up to 1/4" using their expander. I was told going from 2.5" to 3" was going to be questionable.
![Smilie](https://my350z.com/forum/images/smilies/smile.gif)
I'll have the car up on the lift this weekend and take some pics and send them to you.