No one I know of other than the Doug Thorley MP headers have a replacement
crossover pipe. I had a good exhaust shop replace what's in front of the
convertor with 2 1/4" aluminized pipe and a flowmaster Y-Pipe(I had him
install the O2 sensor in the Y-pipe). The larger diameter pipe, removing the
nasty kink and the Y-pipe made a huge difference in performance. I followed
this work with a 3" high flow cat and 3" Flowmaster Big Block muffler and
3"Stainless tailpipe off a V10 pickup. ETs dropped 4 to 4 1/2 tenths. Total
parts and labor was around $620.
Andre Mauboussin
95 Dak 14.70&94.5mph
Stephan Boianoff wrote:
> Does anyone make headers for a '98 5.2L that come with a less
> restrictive crossover pipe? I am looking to replace everything forward of
> the catalytic converter. Thanks.
>
> Steve
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