I bought my car without cats and bought a summit h-pipe w/ cats to pass inspection. Performance wise, I think you can feel the difference. The catless seems faster. What ever you do don't get a summit h-pipe. The first time it came it didn't have o2 holes drilled in, then when it came back it was 1.5 inches short and the metal peices that go into the double hump were 6 inches to far forward. I ended up grinding off the double hump supports and had to pry and clamp my exhaust together, it was so tight. After about a month both muffler brackets broke so I passed inspection and put the offroad h back on.
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'89 LX 5.0, off-road h pipe, flowmaster muffs, underdrive pulleys, rebuilt WC T-5, King Cobra Clutch, 65mm throttle body, Explorer Upper/GT40 lower, Lakewood Rear Lift Bars. 76mm C&L Mass air w/ inlet pipe, Twisted wedge heads w/ stage 2 port,polish, MAC equal length shorties, Billet AFPR, 255LPH fuel pump, fresh low end w/ 10.5:1 compression.
If anyone ever wants to go to Raceway Park in Englishtown New Jersey, give me a shout.
RICER HATERS CLUB MEMBER 87!
www.ricehatersclub.com
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