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Yes, REX 4-1 headers from GM Motorsport. They are all equal length primaries.Just a quick question
Is there a set of 4into1 headers and cats to fit the factory cat back??
i think theres quite a few short 4into1s, if you are talking long tube then i think these are your only optionJust a quick question
Is there a set of 4into1 headers and cats to fit the factory cat back??
those HSV bits are getting increasingly more expensive and/or difficult to find,
I would agree. But cost has to be a factor for some. The HSV setup has always been a good low cost option which won't cause any warranty issues. Looks OEM and doesn't require a tune. That's why they're gold. Not because they're the best out there.
ive had absolutely no problems with warranty and service's and i've changed/replaced everything that I can , all I get are enquiries to how it goes .
I’m guessing that with the gmmotorsport 4into1 you need a tune??
Also what are triplestepped pipes?
And what’s the difference between them and the 1 3/4 headers?