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NT421Q 255/55R18 109V XL 29
The stock rear shocks are replaced with Stealth Shocks for increase dampening
Available for virtually all of today's top selling vehicles
while gaining added height and performance
Flowmaster Flow FX Muffler 1978-pontiac-firebird-formula-esi2026215 NT421Q 255/55R18 109V XL 29Flowmaster's Flow FX series mufflers deliver a moderate performance tone for the enthusiast looking for an exhaust note that is different from the "chambered" muffler sound. With a 3. 0 inch inlet and outlet size and a 6 inch diameter body, this muffler is a great choice for large displacement gas engines. The interior features a large 3. 0 inch "straight through" stainless steel perforated core, surrounded with high temperature sound absorption
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