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HiFlow Exhaust Manifold Crosspipe 02-05/08+ WRX, ALL STi/LGT
click for details...
[001001]
$169.99
Reviews

1/2"+ Thick Flanges, 14 Gauge Tubing, TRIPLE Layer Flex Joint. We are DURABILITY.

Subaru supplies its turbo owners with a tiny little crosspipe from the factory. 50% of your exhaust gasses are passing through this tiny pipe and, well, that's just a problem. Do not worry though, GrimmSpeed has a solution for you!


The entire HiFlow Crosspipe is made of 304 SS(flanges, flex, tubing) and has a pipe-wall thickness of 14 Gauge, this is the most "heavy-duty" pipe you will find. Many other pipes use cheap thin steel and are marketed as "super light weight", not us. The one of a kind Triple Layer Flex Joint is not located in the bend, which adds to the life expectancy of the flex section. This unit is built from 1.92" 304 Stainless Steel tubing, maximizing exhaust flow from cylinders 1 and 4 to the manifold collector for faster turbo response.

Customers have seen up to 15 HP INCREASE when combined with our PnP Subaru Exhaust Manifold. The pipe by itself should net around 5-8 HP INCREASE. 

Add on our amazing Ceramic Heat Coating for a VERY SMALL fee to help keep the heat in and speed up those exhaust gasses even more.

 
 

  • Boost transition is improved over stock
  • Helps airflow in the mid to high rpm range.

Applications:
'02-'05 and '08-'10 WRX
'04-'10 STi
'04-'09 LGT
'91-'94 Legacy Turbo
'04-'09 Baja Turbo 





 

 

 

 

 

 

 

 

 




 

 

 

 

 

 

 

 

 


Piping Material -
304SS
Pipe Wall Thickness - 14 Gauge (2mm)
Pipe Inner Diameter - 1.92"
Flange Material - 304SS
Flange Thickness - 13mm (over 1/2")
Flex Material - 304SS
Flex Design - 3 Layer Corrugated
 

Contents
(1) HiFlow Crosspipe
(4) Nuts w/ Bolts

by Aaron Ojcius Date Added: Tuesday 23 February, 2010
I have this combined with the PnP manifolds and new up-pipe. WOW! Works fantastic, and MUCH cheaper/more durable than most headers. Customer service is fantastic.

Rating: 5 of 5 Stars! [5 of 5 Stars!]
by PolarisSnT Date Added: Tuesday 22 July, 2008
Just got the cross over pipe and ported manifolds. Combo lookes great and is the best fitting header Ive had on the car(stock, Synic EL, WBR EL). This is due to the flex joint but the headers just wen..

Rating: 5 of 5 Stars! [5 of 5 Stars!]
by djerickd Date Added: Monday 19 February, 2007
I've recently installed my GrimmSpeed HiFlow Exhaust Manifold Crossover pipe and it's a definate improvement over the stock piece and compliments my ported OEM manifold setup very nicely. I didn't rea..

Rating: 5 of 5 Stars! [5 of 5 Stars!]
by Jason Lutz Date Added: Friday 06 April, 2007
These guys are great. Justin is pretty much the best guy ever. Very quick turn around on everything I've given him. I've got the exhaust mani P&P, TGV deletes, crossover pipe.

Rating: 5 of 5 Stars! [5 of 5 Stars!]
Current Reviews: 4 View more reviews

These other GrimmSpeed products match up great with this product!

Ceramic Thermal Coating 
GrimmSpeed's Thermal Coating will keep those hot exhaust gases in the exhaust pipes. Keeping the hot exhaust gases retained within the pipes will speed up exhaust velocity, giving you quicker turbo spool-up.

Gaskets 
GrimmSpeed's Gaskets are the real deal. 20-100% Thicker than OEM and include a 304 Stainless Steel Fire-Ring to give you that added insurance for no leaks. GrimmSpeed Gaskets are the ONLY option on the market that are better than OEM Gaskets.

Please select desired add-on products below.

Available Options:
Ceramic Thermal Coating:
Ceramic Thermal Coating Color:
Gasket: Crosspipe(set):
Quantity:  
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Reviews more
HiFlow Exhaust Manifold Crosspipe 02-05/08+ WRX, ALL STi/LGT<br> <b>click for details...</b>
These guys are great. Justin is pretty much the best guy eve ..
5 of 5 Stars!

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