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Magnaflow 23453 or Flowmaster 2010023 cat system?

Vitals: 1999 Tahoe 2door HT383E engine I've been looking at getting a better flowing system from the manifolds back. I'm fairly well decided to use the Gibson 615501 for the cat back, but can't decide on what cat system to put in between the manifolds and the Gibson. The manifolds are staying...
- Runerock
- Thread
- Oct 19, 2023
- Replies: 13
- Forum: Exhaust
NP246 6 bolt to 4L60E 4 bolt

Hi. So I have a 99 2dr Tahoe 4X4 that is getting a new transmission. Summit sold me one that they swore was the correct one after I asked why the bell housing was different. I ended up going to a yard and pulling the correct dust shield cover. My old one just has a plate and a bell housing that...
- Runerock
- Thread
- Sep 9, 2023
- Replies: 19
- Forum: Transfer Cases