TurboXS Uppipes are manufactured to exacting standards from the same cast iron as the factory manifold, to maintain the same quality, expansion and fitment characteristics. By removing the restrictive factory catalytic converter uppipe, you will increase exhaust flow to the turbocharger, increase HP, reduce turbo lag, and eliminate the chances of a damaged catalytic converter destroying the turbocharger.
The thickness of the TXS Cast Iron Uppipe offers superior heat retention properties over a thinner stainless steel version, maintains more exhaust energy, increases turbo performance and reduces fatigue.
Why is the retention of heat so important? Heat is energy and since Subaru located the turbocharger so far from the exhaust ports, keeping heat in the exhaust is critical for turbocharger performance.
Why is the uppipe inner diameter critical? TurboXS uses an inner diameter of 45mm, which happens to be the inner diameter of your turbochargers exhaust inlet. This promotes the best possible performance throughout the entire RPM range by maintaining exhaust velocity. Over sizing the inner diameter of the uppipe slows exhaust velocity and creates turbulence as it enters the smaller inlet of the turbocharger, ultimately hurting turbocharger spool up. Exhaust velocity is critical!
All TurboXS Exhaust components feature a 5 year warranty!
Each uppipe is black anodized to for corrosion protection. Extra thick CNC machined flanges ensure proper exhaust gas sealing that has plagued so many other stainless steel uppipe designs. This uppipe will last the test of time!
TurboXS Cat-less Uppipe includes new studs and a factory exhaust gas temperature probe bung.
Author
UM-WRXer Registered User
Registered: March 2003 Location: Weston CT Posts: 38
Review Date: Tue September 23, 2003
Would you recommend the product? Yes |
Price you paid?: $199.00
| Rating: 8
Pros:
um.....1 cat less
Cons:
none yet
overall i have experienced less turbo lag due to the higher rpms between shifts. I have not experienced any cels yet, but im only 1500k in. Definitely change your gaskets when doing the swap.
Review Date: Mon September 29, 2003
Would you recommend the product? Yes |
Price you paid?: $220.00
| Rating: 7
Pros:
spools faster from lower revs/ low rpm drivability
Cons:
exhaust leaks if not installed PERFECTLY!
reccomended to all as a first upgrade. Good gains for little $$$.
TWRX Registered User
Registered: March 2003 Location: Waipahu, Hawaii Posts: 24
Review Date: Tue October 28, 2003
Would you recommend the product? Yes |
Price you paid?: $240.00
| Rating: 9
Pros:
well manufactured, perfect fit, great performance
Cons:
none
Another great product from TurboXS! There's nothing bad I can say about the product itself. The install instructions are pretty good.
I am getting CELs though. Used the 2.2k resistor trick to cure catless uppipe problem.
Much faster spool up.
Me&05WRX Registered User
Registered: January 2005 Location: San Bruno, CA Posts: 352
Review Date: Mon November 28, 2005
Would you recommend the product? Yes |
Price you paid?: $170.00
| Rating: 10
Pros:
Faster spool-up
Cons:
None
I have bought their newer version of the uppipe with the flex section.
When I first opened the packaging, I noticed how the welds are nicely done to the uppipe, it was neat and clean. It is a very nice crafted piece of pipe. The performance gains from this uppipe is great. Driving after the installation, I noticed how the acceleration was lighter compare to when it was stock. The sound of the spool was much more audible and acceleration is much improved. Top end performance was improved slightly, but still noticeable. I love this uppipe... very good bang for the buck!
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