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Any pictures of a side by side comparison of stock TTA heads and Champion's or other vendor's heads? I'm interested in what all is changed. Is the lower manifold need to be ported to match?
thanks
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89 TTA -first and original owner, 34k miles.
www.my89turbotransam.com
BB CPT-61, THDP, 60# inj., Electronic dump pipe, SMC Alcy Inj. stock exhaust from cat back.
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