Day 8 of Exhaust Crisis....OK, the exhaust shop got in the supposed 3 inch intermediate pipe finally and it is 2 1/2, not 3 inches !! I'm not mad at the guy, maybe I should be, but that's what Maremont sent him. Maybe they're not even Maremont. Who knows. My question is..... since my muffler inlet is 2 1/2 anyway and I don't want a new muffler, will getiing the 2 1/2 intermediate pipe (from cat to muffler) hurt my performance at all ? I figure it would not, since I have always had the 2 1/2 inch muffler inlet, even though at SOME spots, my current intermediate piupe is 3 inches....
Getting tired of running from shop to shop. I don't want to bother ordering by mail since I'd have to have someone install it anyway.

I have the 350 engine with TPI and single exhaust.

I am almost ready to have the 2 1/2 inch put on, just to get this misery over with, and have my car pass inspection finally. Just want to know I will not be losing performance.


Thanks




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88 GTA 5.7 TPI Charcoal Grey Bone Stock except for loose muffler which makes it a bit louder than normal.

 

The stock pipe is 2.75"
People gain power by going to 3"

For sure the 2.5" will hurt.