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Corsa Sport » Message Board » General Chat » X16xe 4-2-1 manifold » Post Reply
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gavin18787 |
posted on 28th Apr 17 at 18:06 |
I ran a mantzel with a 421 and it was great. Mantzel give good high rpm gains and the 421 is better for mid range then a 41 so they go well together. | |
Cannon94 |
posted on 17th Apr 17 at 15:53 |
What's better 4-2-1 or 4-1 exhaust manifold to go with Mantzel inlet I alrdy have ? And where can I still get them brand new plz? |