long tubes on mustangs are what NORMAL headers are on just about any other car, at least the older muscle. Most people put headers on the older cars cause they come with awful exhaust manifolds... your mustang comes ffrom the factory with headers... better then any manifold i've ever seen... not that new headers are bad but if you could spend you money on something else you'd probabl see more HP gain from a K&N filter then from a new set of headers. Though if you're going to get a fully worked engine then the longtubes are probably the best bet, though they bring thier own set of problems like others said, ground clearance for one and installation can be rather frustrating
-as
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'89 GT Convertible:
TFS TW Heads, TFS Street Intake, TFS Stage 1 Cam, FMS 1.6 RRs, 24# Injectors, Pro-M 75mm MAF, No Name CAI, 3.73s, O/R H-Pipe, FlowMasters, AOD w/ Trans-Go Shift Kit
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