Downpipe

I was talking to a guy about a new turbo,a T3/T4 to be exact.He said a 3" downpipe will not work on one of these,something about uncovering some sort of hole or port or something??????He said I would have to bolt up a piece of a 2.5 DP and step up to 3" and then back down to 2.5 for the rest.Isn't that kind of defeating the purpose?Anyone already running one of these have any input?Thanx guys.

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Too much fun, what's that mean?That's like too much boost,there's no such thing.

I don't know about others but the S-M downpipe has a very short section of roughly 2.5" right where it bolts to the turbo exhaust elbow because the elbow is only about that big and you can't bolt anything bigger in there.. It then flares to 3". It may sound self defeating, but those of us running them will tell you it works. I don't know exactly how the T3/4 come configured on that end. Is the exhaust elbow different than on the stock T-3??

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NATO Member
88 TC X 2, 86 SVO, Main TC with K&N, 3"DP to 2.5"duals through Dynamax, Ric valve at 17+ and disconnected KS.
Elite Bodega 16" chrome wheels. Autometer pod w/ A/F and Vac/boost gauges.140 mph Motorsports Speedo New engine: Total Seal rings and TRW pistons, ported and polished head w/ cc'd chambers,1.59"exhausts, SS valves, gutted upper, knife edged lower, A-230 cam, Race Engineering Adj Cam Sprocket, Crowlers, ARP head studs, and rod bolts. Walbro 255 HP pump and Kirban adj FPR, T-3. Centerforce II, KB subs and jack rails.

Not sure Pete,will have to dig deeper on that one.

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Too much fun, what's that mean?That's like too much boost,there's no such thing.