Coupler hose diameters?

eagleguy

Member
Can someone tell me the stock diameter of the intercooler pipes? I would like to replace the OEM ones. I get 3.12, 2.53 and 2.07.
 
Been a while since I had the stock setup but if memory serves: Turbo to intercooler is 2" I.D. Intercooler out to uppipe is 2 1/2" I.D. Uppipe to throttle body is 2 5/8" I.D.
 
I use silicone couplers and get them from ebay. If you're after the the factory style fabric ones I believe Kirbans and HighwayStars has them. Comes in a set of 3 hoses. You would have to get the MAF hoses from somewhere else.
 
I saw a set on ebay for $95 plus shipping. It was silicone with different colors available. I did not know if that was a good price or if there were other options.
 
I've seen those sets. If you bought the couplers and t bolt clamps separately it would probably come out cheaper but if you're looking for convenience go for it. Just make sure the sizing is correct for what you have, specifically your maf setup. Last I saw they didn't list the sizes.
 
I've seen those sets. If you bought the couplers and t bolt clamps separately it would probably come out cheaper but if you're looking for convenience go for it. Just make sure the sizing is correct for what you have, specifically your maf setup. Last I saw they didn't list the sizes.
Funny you should say that. I sent them an email requesting the sizes and they would NOT tell me. All they said was that the set was modeled off OEM when I inquired as to why they could not tell me the sizes. Weird.
 
Lol. If they can't even give you sizes its probably best to look elsewhere or buy what you need separately.
 
Www.buickgn.com. TR custom parts. Mark Hueffman? Board supporter. Not sure about the spelling. Bought a set from him a couple months back. Everything I have is stock and they fit perfectly, even in length. The set I bought was only 3 pcs. Turbo to intercooler, intercooler to up pipe, up pipe to throttle body. Not sure what the other two you're talking about are.


Sent from my iPhone using Tapatalk
 
Www.buickgn.com. TR custom parts. Mark Hueffman? Board supporter. Not sure about the spelling. Bought a set from him a couple months back. Everything I have is stock and they fit perfectly, even in length. The set I bought was only 3 pcs. Turbo to intercooler, intercooler to up pipe, up pipe to throttle body. Not sure what the other two you're talking about are.


Sent from my iPhone using Tapatalk
I am including two needed for the air cleaner pipe.
 
I'm certain he's got those two also, just measure the diameter. it may be easier to find those two on the shelf at your local parts store. The stock MAF pipe wasn't rigid, so there's no telling what's on there.


Sent from my iPhone using Tapatalk
 
I'm certain he's got those two also, just measure the diameter. it may be easier to find those two on the shelf at your local parts store. The stock MAF pipe wasn't rigid, so there's no telling what's on there.


Sent from my iPhone using Tapatalk
First post
 
First post
???????
First post (yours) says IC hoses. 626gn gave you the diameters and told you there was only 3. Then,
Third post (yours) asks for a set of 5 (there's only 3 IC hoses). I told you who to get the IC hoses from and GUESSED you were including two for the MAF pipe. Then you direct me back to your first post. I don't know, dude. Maybe your local Suzuki dealer.

Edit: the stock MAF pipe wasn't rigid. It was like a dryer vent hose so it had no couplers. If you have a rigid one, there's no telling what the diameter it is without putting a measuring tape or caliper on it.
 
???????
First post (yours) says IC hoses in my FIRST post. 626gn gave you the diameters and told you there was only 3. Then,
Third post (yours) asks for a set of 5 (there's only 3 IC hoses). I told you who to get the IC hoses from and GUESSED you were including two for the MAF pipe. Then you direct me back to your first post. I don't know, dude. Maybe your local Suzuki dealer.

Edit: the stock MAF pipe wasn't rigid. It was like a dryer vent hose so it had no couplers. If you have a rigid one, there's no telling what the diameter it is without putting a measuring tape or caliper on it.



This is my first Turbo so I obviously did not my post question correctly. I considered my rigid MAF pipe when I provided THREE measurements for a total of 5 (first post) hoses vs. the actual 3 for the IC. The measurements were taken with a caliper and the Suzuki dealer has no parts. Sorry for the confusion dude, my bad.
 
Last edited:
I am looking for a set myself and found this using the search tool. If you look at the sellers feedback I went through about 5 of the pages of feedback and there are people that bought the set for their GN and they were happy with the products. It doesnt look like there is a fitment issue.
 
I was looking for all black I/C couplers, both inside and outside, and found that GN1 Performance has that style after I used a black paint marker to the ends of the ones I got from RJC Racing to cover up the end of the blue liner.
You can price them on their websites to see who has the best deal as you can order as many or as few as you want and is closest shipping wise.
Check out the venders at the bottom of this site or check with your friend Google.
[buickgn.com, GN1performance.com, Cottonsperformance.com, fullthrottlespeed.com, hartlineperformance.com, Kirbansperformance.com, arizonagn.com, cruzperformance.com, RJCracing.com, gbodypartsonline.com are a few that come to mind]
 
Give it some time and you will be looking into a maf translator to run a newer style maf. Or digging deep for a kirban stock type. This will be a whole new style coupler set.
I use gates fuel filler hose to do the three intercooler hoses. Blow a couple stock ones and it gets old.

And that seller who wouldn't tell you the sizes probably doesn't know and is too lazy to measure them. You are better off to go with someone who knows.
 
Last edited:
Back
Top