96-97 slp shorty headers or 96-97 pacesetter shorty headers
05-13-2014, 11:06 PM
#1
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96-97 slp shorty headers or 96-97 pacesetter shorty headers
Hey guys just need opinions. Which would be better? The 96-97 slp shorties with 1 3/4 primaries or pacesetter shorties with 1 5/8 primaries. This is a dual cat set up.Need smog legal headers since I'm here in wonderful California. Thanks in advance...
05-14-2014, 10:12 AM
#4
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Re: 96-97 slp shorty headers or 96-97 pacesetter shorty headers
With that head, even straight out of the box (~260cfm), I would recommend the 1-3/4" primaries. I had some JBA 1-5/8" shorties on a basically stock (bolt-on) LT1 and they really seemed to choke the engine at high RPM.
The CARB-EO requirement is not header friendly on the dual-cat engines, so the larger diameter would also seem to provide an improvement on that basis also.
The CARB-EO requirement is not header friendly on the dual-cat engines, so the larger diameter would also seem to provide an improvement on that basis also.
05-14-2014, 04:32 PM
#7
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Re: 96-97 slp shorty headers or 96-97 pacesetter shorty headers
there are some "shorty" headers that do that BUT don't have a CARB certification because the MFG does not spend the high $ to get them that certification
Longer headers require moving the CATS back...which won't fly on smog.
Re: 96-97 slp shorty headers or 96-97 pacesetter shorty headers
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