Official GrimmSpeed Exhaust Parts Thread

One of these days I'll get around to getting my header done up right from you goons.

Seriously, your little GS shop is blowing up. Sweetness.

 

"I was quoting Batman" LOL

 

for sure thomas...just let me know and i'll get you the hook up.

yeah we are growing very rapidly. alot of hard work thats for sure..but fun work ya know.

 

Today i was able to get some numbers for our HiFlow Crosspipe on a 2.0 stage 2 setup. This was about what we expected on this setup... +8whp and +12wtq. Most of the gains are in the mid to high end with just a little bit of a gain down low. This car does NOT have the exhaust manifold collectors ported. The HiFlow Crosspipe has not been coated. With coating i'd guess there would be a little bit quicker spoolup down low vs. the uncoated version that we tested.


Dyno software is DataLogLab. Pulls were taken on the same exact stretch of perfectly flat road at the same time of day(i literally changed the xpipe out in a wal-mart parking lot so i could make sure it was the same temp outside).

Temps were 67F and Humidity was 48%.

Car Specs:
2.0l w/ TD04
GrimmSpeed prototype downpipe
GrimmSpeed Up Pipe
GM BCS

GrimmSpeed HiFlow Crosspipe VS. OEM Crosspipe
+8whp
+12wtq



Justin