Toyota MR2 Message Board - View Single Post

Servin · 11-05-2009, 09:03 PM

Ive been working feverishly to try and find a replacement B pipe since my shop lost my OEM one in their move.

Most of the info will be most useful to US residents, where parts are hardest to come by for the BEAMS. Its relevant for both the Celica and MR2, as they both use the same flange, length of 2-1 section and angle. After the flex piece though its complete differently for the Celica and MR2.

Pipes to cross the list that are similar but dont work:
Fujitsubo Super EX for 2nd gen 3SGE SW20 ver. I had this imported with hopes I could use the B pipe and rear piece. Simply put flange is completely off and the pipes are too close in the V config, the BEAMS uses a wide V angle. (When I use V, I mean 2-1 section.) Inner Diameter is correct for the BEAMS pipe though, and the right length and angle to clear the oil pan. (If you have a gen 2 3SGE in your MR2, this will be for sale, not cheap though.)

On the US ebay there is an aftermarket header for the Celica 7AFE that uses a 4-2-1 setup as well. Ordered it and its the same story too narrow of an angle. Also the B pipe doesnt go low enough to clear the oil pan. If you have a 7AFE celica, Ill give the header and B pipe, just PM me, it didnt cost me much and the quality is okay. (But Im picky, not as much as Angelo but close.)

20V 4AGE uses a OEM 4-2-1 setup as well but again too narrow of an angle in the 2-1 section. Flange is off as well, I dont know if it will clear the oil pan as I didnt test this. Aaron makes a B pipe to fit the 20v in the AW11, I need to get him some specs and chat a little bit and possibly making one for the BEAMS in the SW20.

Almost gave up the search and contemplated getting a custom one made, but not really any good fabricators around here. I really wish I knew how to weld as I could make this quite easily. Then I got a second wind and scoured the Toyota catalog to find a matching piece. When finally everything came together!!! And from a fellow family member too!!!

The MR-S or MR2 Spyder uses a 4-2-1 section as well on the 1ZZ! After some looking around on SpyderChat I found a local guy selling a OEM downpipe. After some chatting I picked it up today for $100 a little over priced but I just wanted it now.

As you tell in the pics it will need some modification to fit but thats not a problem for me.

After Modification:

Obviously the cat had to go as the angle is all wrong

Issue! The flange is off SOB!

but that doesn't stop me!

It isnt that big of an issue, flanges are easy to make even for the folk around here.

But the important part is that the angle is right and the inner diameter is the same. It also clears the oil pan!!

11-05-2009, 09:03 PM	#1 (permalink)
Servin Beams Owners Group Join Date: Aug 2007 Location: DFW, Texas Posts: 1,250 Thanks: 13 Thanked 54 Times in 42 Posts iTrader Rating: (2/100% )	Having B Pipe woes? Ive been working feverishly to try and find a replacement B pipe since my shop lost my OEM one in their move. Most of the info will be most useful to US residents, where parts are hardest to come by for the BEAMS. Its relevant for both the Celica and MR2, as they both use the same flange, length of 2-1 section and angle. After the flex piece though its complete differently for the Celica and MR2. Pipes to cross the list that are similar but dont work: Fujitsubo Super EX for 2nd gen 3SGE SW20 ver. I had this imported with hopes I could use the B pipe and rear piece. Simply put flange is completely off and the pipes are too close in the V config, the BEAMS uses a wide V angle. (When I use V, I mean 2-1 section.) Inner Diameter is correct for the BEAMS pipe though, and the right length and angle to clear the oil pan. (If you have a gen 2 3SGE in your MR2, this will be for sale, not cheap though.) On the US ebay there is an aftermarket header for the Celica 7AFE that uses a 4-2-1 setup as well. Ordered it and its the same story too narrow of an angle. Also the B pipe doesnt go low enough to clear the oil pan. If you have a 7AFE celica, Ill give the header and B pipe, just PM me, it didnt cost me much and the quality is okay. (But Im picky, not as much as Angelo but close.) 20V 4AGE uses a OEM 4-2-1 setup as well but again too narrow of an angle in the 2-1 section. Flange is off as well, I dont know if it will clear the oil pan as I didnt test this. Aaron makes a B pipe to fit the 20v in the AW11, I need to get him some specs and chat a little bit and possibly making one for the BEAMS in the SW20. Almost gave up the search and contemplated getting a custom one made, but not really any good fabricators around here. I really wish I knew how to weld as I could make this quite easily. Then I got a second wind and scoured the Toyota catalog to find a matching piece. When finally everything came together!!! And from a fellow family member too!!! The MR-S or MR2 Spyder uses a 4-2-1 section as well on the 1ZZ! After some looking around on SpyderChat I found a local guy selling a OEM downpipe. After some chatting I picked it up today for $100 a little over priced but I just wanted it now. As you tell in the pics it will need some modification to fit but thats not a problem for me. After Modification: Obviously the cat had to go as the angle is all wrong Issue! The flange is off SOB! but that doesn't stop me! It isnt that big of an issue, flanges are easy to make even for the folk around here. But the important part is that the angle is right and the inner diameter is the same. It also clears the oil pan!!