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You are looking at the same outstanding quality as our other exhaust pieces. Folks, this is by far the nicest up pipe we've have seen to date (and we've seen almost every other up pipe on the market).
includes 5 studs
massive SS flanges
+10 whp gain
minimal internal steps for maximum flow
complete stainless steel construction
optional ceramic coating
weight reduction over stock piece
flex joint that is NOT located in the bend which adds life expectancy to the flex section. many other up pipes have a flex right in a sharp bend so all the exhaust/turbulence is hitting up against it.
reduce turbo lag
increase exhaust flow to turbo
Adding a non-cat'd up pipe is one of the first things you should do to your Subaru. Arguably one of the best $/HP ratios. Due to emission reasons Subaru has to but very restrictive cats in the exhaust system. With the GrimmSpeed up pipe these cats are eliminated. Another great feature of the GrimmSpeed up pipe is that the inlet is gasket matched so you have a perfectly smoothed out exhaust flow compared to the big step that that tiny stock inlet has.
The GrimmSpeed up pipe is specifically created without an EGT bung. The ecu does not use the egt sensor for air/fuel adjustments. You do not need the egt sensor. If you would like to keep tabs on EGT temperatures the correct place to do it is on the exhaust manifold right after the exhaust ports, this is the only place where the correct temperatures can be taken.
Applications: 02-07 WRX
04-07 STi
04-07 LGT
04-07 FXT
04-07 Baja T
91-94 Legacy Turbo 04-07 Baja Turbo
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