I have an Ultimate Racing Kit ... the first generation.

the dumptube from the wastgate circulates back into the downpipe (the first gen kit does that... now they are on gen 3 which does not recirculate...). well anyways... I wanted to upgrade to a 3" downpipe and I was thinking I could just replace it with a 3" downpipe (and some other minor parts).

..WRONG. 'U.R.' stated via phone that's not possible. the downpipe I have is a 5 bolt, rather than a 4 bolt. So I can't upgrade without changing my turbo, my manifold, a new wastgate, and a dumptube... [ohh yes I was pissed]


they also stated that the difference would be off by only appx 20whp's with my setup.

Should not have bought UR...
Perhaps I can get a custom 3" DP???

Other Options???

 

why are you pissed?

 

Trace your flange and send it to weirtech. He'll cut you one for $25 and can make you a balln' down pipe if you want. The man is a TIG master. He's also got a crx with a f20 swap!

 

You CAN have a 3 inch down pipe, provided you make it yourself! Check apt turbo's website they have 5 bolt to 3 inch adapter peices. But you will need to learn to weld.

 

go custom

 

2nd that!

I had to weld my dual! And on top of that, it first time ever, in my entire life, that I actually tried to weld anything. I bought a bunch of pipes and bend and flanges and 2 straight-through silencers, no cat, all in 3 inch, and went welding! It's not pretty, but who's looking? It's still holding up, still flowing well.

 

exactly. working with a car like this it is NOT unusual to have a substantial ammount of custom work. get you a flange and have a shop weld that hoe to the top of the new dp. step 2, get ya a wastegate dump and run it about 7 inches from the ground pointing directly at the asphalt. let the deafening bliss begin

 

ive wanted to do the crx f20 ever since the s2000 came out.anyway we can get some pics?second gen crx BTW

 

most 5bolt flanges dont really accommodate a 3inch dp very well. you end up having to grind on them for days to get the opening to 3inch and use allen head nuts b/c there isnt room for a 12mm head.

 

The original poster is correct. We switched to a 4-bolt T31 style turbine housing when we changed from Gen 1 to Gen 2. A production 3" downpipe was never offered for the Gen 1. The original poster asked what his options were, so I gave him the option to upgrade to a Gen 3 setup since he wanted something "bolt-on". The parts he'd need to replace (obviously) were the manifold, turbocharger, and downpipe. He had already upgraded his wasetgate to a Tial 38mm (which we also upgraded to in Gen 2) so that was not necessary. He did sound a bit upset with me on the phone as well, I really don't understand why though

Darryl