do I need to lose my new cat-back?
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Junior Member
Joined: Mar 2001
Posts: 70
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From: tempe, AZ, America
do I need to lose my new cat-back?
I just installed a flowmaster 40 series muffler onto my 91 rs 305 tbi. The job was great and the dual 3" chrome tips look awsome but if I redo my exhaust from the headers back do I need to redo the work I have already completed if I go with 3" pipe all the way back?
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91' red RS convert.
71,000 miles
89' IROC hood
red Z-28 16" rims
potenza re730's
MSD ignition
MSD coil
K&N fiter
350 ported polished heads
hypertech chip
flowmaster 40 series cat-back
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91' red RS convert.
71,000 miles
89' IROC hood
red Z-28 16" rims
potenza re730's
MSD ignition
MSD coil
K&N fiter
350 ported polished heads
hypertech chip
flowmaster 40 series cat-back
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