PEMs difference
#1
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PEMs difference
Is there a difference between the GTP exhaust manifolds and the Bonneville manifolds? I am hearing that there are but when I did my engine swap I didn't change the exhaust manifolds out and it bolted up just fine. I am looking at buying PEMs and I am wondering if there is a difference between them because it was mentioned.
#2
DINOSAURUS BOOSTUS
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Front manifold definately. Rear is different on the 96-99 for sure. Maybe yours are the same. If so..that opens up a whole big market for the 00+ folks
#3
as far as i know, the fronts are EXACT, the are even the same part number...
for the rears the bonneville manifolds are offset about 2" because of how the motor sits in the engine bay differently than the GP
if you did not swap manifolds, your downpipe is just crooked.. :?
http://www.bonnevilleclub.com/forum/...ight=manifolds
for the rears the bonneville manifolds are offset about 2" because of how the motor sits in the engine bay differently than the GP
if you did not swap manifolds, your downpipe is just crooked.. :?
http://www.bonnevilleclub.com/forum/...ight=manifolds
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Originally Posted by harofreak00
if you did not swap manifolds, your downpipe is just crooked.. :?
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Originally Posted by jshelton54
Well I did it so ??????? I will get under there and take some photos to verify.
Cheers,
#8
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Originally Posted by Foghorn
Originally Posted by jshelton54
Well I did it so ??????? I will get under there and take some photos to verify.
Cheers,
#9
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Thanks very much for getting that photo. It is a bit hard to tell just how things line up but you look like you have clearance. There'* quite a lot of room around the firewall in general, it'* interesting that the Bonneville rear manifold moves the downpipe outlet on the manifold about 2" towards the passenger side comapred the GTP one.
Interesting...
Cheers,
Interesting...
Cheers,
#10
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Yeah, if there was an offset I don't think that it would have bolted up. I will try to get a better picture from underneth the car today.