The latest Turbo Magazine tests like 10 or 15 axle back mufflers (not a entire turboback) on a WRX. Turbo magazine reports gains of 13 - 15 hp on some of these mufflers. Is this a realistic power gain for just a muffler? I have always thought mufflers were just for the sound and looks.....
Large axleback muffler text on WRX.
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i got the data from Turbo magazine, but i ran a spreadsheet to find out who has the best "bang for the buck"
the manufacturers list:
Skunk2
HKS
Cobb Tuning
MRT Performance
Blitz
5Zigen
A'PEXi
Thermal R&D
Supersprint
Tanabe
M2 Performance
and the winners are (because of a tied score):
SKUNK2 and HKS
CLICK HERE to download the PDF spreadsheet
the manufacturers list:
Skunk2
HKS
Cobb Tuning
MRT Performance
Blitz
5Zigen
A'PEXi
Thermal R&D
Supersprint
Tanabe
M2 Performance
and the winners are (because of a tied score):
SKUNK2 and HKS
CLICK HERE to download the PDF spreadsheet
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