IHADAV8.com - Turbo Buick Tech, and Nonsense

Tech Area => General Buick Tech => Topic started by: Big Dawg on September 12 2021, 07:39:08 PM

Title: Exhaust upgrade questions for the 85 GN
Post by: Big Dawg on September 12 2021, 07:39:08 PM: Okay here goes,

I just received my new Magnaflow exhaust Kit#16884 for the 85 GN. I unpacked it all and went through all the parts I hoisted my car up and it looks as if the previous owner had put in a quick fix from a shop. The pipe does jot have the correct flanges on either end, the side closest to the front has a 2 bolt flange bolted in on an angle to somewhat work on a 4 bolt flange which is 3.25" square. As you see in the picture, the new y-pipe in the kit looks to be a 3 inch with a 4 bolt flange.

My question is where can I get the "test pipe" that goes between the 2 sides. I am sure the 86 - 87 had cats there, correct?

I will post a picture of the kit, the flange end on the y pipe, and also have picture of the part that I need circled in red in one of the pictures. Hooker sells an exhaust kit for the buick turbo cars that has the test pipe in the kit. Also I will post a picture of the mickey mouse pipe that is under my car as well.

If anyone has a spare pipe kicking around please let me know, or knows where to get one, Pypes, Walker Etc.

Thank you.
Am
Title: Re: Exhaust upgrade questions for the 85 GN
Post by: Big Dawg on September 12 2021, 07:49:13 PM: Here are couple more pictures of under the car of the rest pipe area.
Title: Re: Exhaust upgrade questions for the 85 GN
Post by: ~JM~ on September 12 2021, 08:53:39 PM: RJC Racing (https://rjcracing.com) offers a stainless 3" test pipe for the '86-'87 TR. I don't think it is displayed on their site. I don't know if it will fit into the spacing you need.
Title: Re: Exhaust upgrade questions for the 85 GN
Post by: ULYCYC on September 14 2021, 07:03:14 AM: Test pipes are illegal and most vendors wont put them up on a website to sell. But most do carry them. Call by phone. If not, your local muffler shop (not a chain store) will make one for you.
Title: Re: Exhaust upgrade questions for the 85 GN
Post by: Big Dawg on September 05 2022, 01:00:24 PM: Hey guys,

Been way to long, I hope everyone is staying safe and healthy enough to be out driving the Buicks!

My last update was looking for a test pipe for my newly arrived Magnaflow exhaust. Well I had a member of the other Buick site offer to fabricate one up for my hotair and ship it to me . He only charged me the shipping....ve ry nice gesture....her e are a few pics of the exhaust installed on the car.
Title: Re: Exhaust upgrade questions for the 85 GN
Post by: Big Dawg on September 05 2022, 01:24:33 PM: .
Title: Re: Exhaust upgrade questions for the 85 GN
Post by: Steve Wood on September 05 2022, 01:26:18 PM: Looks very nice 👍
Title: Re: Exhaust upgrade questions for the 85 GN
Post by: Big Dawg on September 05 2022, 01:33:24 PM: Thank you,

I had attached some more pictures but they didn't attach. I will start a new thread with some updated pictures.